chore: Update redis-py<7 & python >= 3.9

[nsteinmetz]

• redis-py 6.x was released
  • redis-py 6.x covers all current supported version of redis and had some breaking changes - so 6.x is the new minimal requirement.
  • Removed the _disconnect_case related test as it no longer exists in redis-py
• python 3.8 is EOL
• Added python 3.13
• Bump dependencies versions

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 97.43590% with 1 line in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
arq/connections.py	87.50%	1 Missing ⚠️

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@@            Coverage Diff             @@
##             main     #500      +/-   ##
==========================================
- Coverage   96.27%   96.02%   -0.25%     
==========================================
  Files          11       11              
  Lines        1074     1082       +8     
  Branches      209      144      -65     
==========================================
+ Hits         1034     1039       +5     
- Misses         19       21       +2     
- Partials       21       22       +1     

Files with missing lines	Coverage Δ
arq/jobs.py	98.15% <100.00%> (ø)
arq/logs.py	100.00% <100.00%> (ø)
arq/typing.py	100.00% <100.00%> (+9.52%)	⬆️
arq/utils.py	100.00% <100.00%> (ø)
arq/version.py	100.00% <100.00%> (ø)
arq/worker.py	97.17% <100.00%> (+<0.01%)	⬆️
arq/connections.py	87.50% <87.50%> (-2.57%)	⬇️

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[nsteinmetz]

@samuelcolvin what is the strategy / best way to upgrade versions of components ? Such as ruff or pydantic-core ?

Fixed ✅

[nsteinmetz]

I don't know how to fix this one:

❯ make mypy             
mypy arq
arq/connections.py:104: error: Missing type parameters for generic type "ConnectionPool"  [type-arg]
arq/connections.py:244: error: Argument "sentinels" to "Sentinel" has incompatible type "str | list[tuple[str, int]]"; expected "Iterable[tuple[str, int]]"  [arg-type]
arq/connections.py:249: error: Redundant cast to "ArqRedis"  [redundant-cast]
arq/worker.py:873: error: "ArqRedis" has no attribute "aclose"  [attr-defined]
arq/worker.py:914: error: "ArqRedis" has no attribute "aclose"  [attr-defined]
Found 5 errors in 2 files (checked 12 source files)

Fixed ✅

[nsteinmetz]

@samuelcolvin : please review the changes, I'm not sure about all of them.

Due to all changes, it may be worth bumping to 0.27 ?

[nsteinmetz]

@JonasKs @samuelcolvin after reading #437 - is this PR worth ?