fix: some issues with Clang 18

[federico-sysdig]

What type of PR is this?

/kind bug
/kind cleanup

Any specific area of the project related to this PR?
/area build

Does this PR require a change in the driver versions?
No

What this PR does / why we need it:
Fix a few warnings and errors that came up during a build with Clang 18.
In addition, I've been working with a simplified version of CMakePresets.json where parameters common to several presets are factored out in a base preset. I took the liberty of adding these minor changes here.

Which issue(s) this PR fixes:
Compilation errors and warnings with recent compilers.

Fixes #
n/a

Does this PR introduce a user-facing change?:
No

NONE

[poiana]

LGTM label has been added.

Git tree hash: 85d518fc472139405d73fe5a0015e8e1d122139c

[github-actions]

Perf diff from master - unit tests

     5.66%     +1.32%  [.] next_event_from_file
     1.11%     +1.07%  [.] sinsp::fetch_next_event
     8.27%     -0.97%  [.] sinsp_evt::get_type
     2.32%     -0.86%  [.] scap_event_decode_params
     4.45%     -0.72%  [.] gzfile_read
    10.09%     +0.68%  [.] sinsp::next
     1.94%     +0.67%  [.] next
     3.62%     -0.46%  [.] sinsp_thread_manager::get_thread_ref
     2.99%     -0.43%  [.] sinsp_parser::process_event
     0.85%     +0.38%  [.] sinsp_evt::get_syscall_return_value

Heap diff from master - unit tests

peak heap memory consumption: 0B
peak RSS (including heaptrack overhead): 0B
total memory leaked: 0B

Heap diff from master - scap file

peak heap memory consumption: 0B
peak RSS (including heaptrack overhead): 0B
total memory leaked: 0B

Benchmarks diff from master

Comparing gbench_data.json to /root/actions-runner/_work/libs/libs/build/gbench_data.json
Benchmark                                                         Time             CPU      Time Old      Time New       CPU Old       CPU New
----------------------------------------------------------------------------------------------------------------------------------------------
BM_sinsp_split_mean                                            +0.0049         +0.0049           152           152           152           152
BM_sinsp_split_median                                          +0.0035         +0.0035           152           152           152           152
BM_sinsp_split_stddev                                          -0.0761         -0.0761             2             2             2             2
BM_sinsp_split_cv                                              -0.0807         -0.0806             0             0             0             0
BM_sinsp_concatenate_paths_relative_path_mean                  +0.0863         +0.0863            57            61            57            61
BM_sinsp_concatenate_paths_relative_path_median                +0.0842         +0.0842            57            61            57            61
BM_sinsp_concatenate_paths_relative_path_stddev                -0.5341         -0.5335             0             0             0             0
BM_sinsp_concatenate_paths_relative_path_cv                    -0.5711         -0.5706             0             0             0             0
BM_sinsp_concatenate_paths_empty_path_mean                     +0.0490         +0.0490            24            25            24            25
BM_sinsp_concatenate_paths_empty_path_median                   +0.0430         +0.0430            24            25            24            25
BM_sinsp_concatenate_paths_empty_path_stddev                   +4.5143         +4.5093             0             0             0             0
BM_sinsp_concatenate_paths_empty_path_cv                       +4.2568         +4.2519             0             0             0             0
BM_sinsp_concatenate_paths_absolute_path_mean                  +0.1382         +0.1382            56            64            56            64
BM_sinsp_concatenate_paths_absolute_path_median                +0.1421         +0.1421            56            64            56            64
BM_sinsp_concatenate_paths_absolute_path_stddev                -0.7810         -0.7810             1             0             1             0
BM_sinsp_concatenate_paths_absolute_path_cv                    -0.8076         -0.8076             0             0             0             0
BM_sinsp_split_container_image_mean                            +0.0274         +0.0274           382           393           382           393
BM_sinsp_split_container_image_median                          +0.0285         +0.0285           383           393           383           393
BM_sinsp_split_container_image_stddev                          +0.9225         +0.9239             2             4             2             4
BM_sinsp_split_container_image_cv                              +0.8713         +0.8726             0             0             0             0

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.19%. Comparing base (34cbe7e) to head (0fae847).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2201   +/-   ##
=======================================
  Coverage   75.19%   75.19%           
=======================================
  Files         261      261           
  Lines       33878    33878           
  Branches     5801     5801           
=======================================
  Hits        25475    25475           
  Misses       8403     8403           

Flag	Coverage Δ
libsinsp	75.19% <100.00%> (ø)

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[Andreagit97]

/approve

[poiana]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Andreagit97, federico-sysdig

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