Add new sandbox-bundled-offloaded-functional-tests for offloading literals unit test

[Mecoli1219]

Why are the changes needed?

Currently, there seems to be no CI test covering the end-to-end offloaded test at the flyte repo. This PR create one.

What changes were proposed in this pull request?

Copy the sandbox-bundled-functional-test, and add new propeller parameters in the flyte config.yaml file. By setting the min-size-in-mb-for-offloading to be 0.000001 (aka. 1e-6MB = 1B), almost all the output of the task should be offloaded.

How was this patch tested?

I first run a local cluster with the updated config file, and test the flytesnacks advanced_composition examples to make sure it will actually offload the literal.

For the real CI test, I'll have to rely on the CI for this PR.

Setup process

Screenshots

Check all the applicable boxes

• I updated the documentation accordingly.
• All new and existing tests passed.
• All commits are signed-off.

Related PRs

Docs link

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 37.02%. Comparing base (e21a6ad) to head (c2d265b).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6111      +/-   ##
==========================================
+ Coverage   36.98%   37.02%   +0.03%     
==========================================
  Files        1318     1310       -8     
  Lines      132449   131636     -813     
==========================================
- Hits        48984    48732     -252     
+ Misses      79212    78691     -521     
+ Partials     4253     4213      -40     

Flag	Coverage Δ
unittests-datacatalog	51.58% <ø> (ø)
unittests-flyteadmin	54.03% <ø> (ø)
unittests-flytecopilot	?
unittests-flytectl	62.29% <ø> (ø)
unittests-flyteidl	7.23% <ø> (ø)
unittests-flyteplugins	53.85% <ø> (ø)
unittests-flytepropeller	42.60% <ø> (ø)
unittests-flytestdlib	55.18% <ø> (ø)

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[Mecoli1219]

@pmahindrakar-oss this PR is ready to be reviewed