Updating workflows

[PaurushGarg]

Issue #, if available:

Description of changes:
Fixing this PR: #627

1. Separate out contract tests for main and nightly build.
2. Remove patch build for nightlybuild workflow as this workflow should need patching.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov-commenter]

Codecov Report

Attention: 102 lines in your changes are missing coverage. Please review.

Comparison is base (09e6487) 85.71% compared to head (fdfb4ab) 50.73%.
Report is 198 commits behind head on main.

Files	Patch %	Lines
...ent/providers/AwsAppSignalsCustomizerProvider.java	24.00%	35 Missing and 3 partials ⚠️
...gent/providers/AwsSpanMetricsProcessorBuilder.java	0.00%	20 Missing ⚠️
...ders/AttributePropagatingSpanProcessorBuilder.java	0.00%	16 Missing ⚠️
...viders/AwsMetricAttributesSpanExporterBuilder.java	0.00%	11 Missing ⚠️
...try/javaagent/providers/AwsSpanProcessingUtil.java	90.16%	1 Missing and 5 partials ⚠️
...vaagent/providers/AwsMetricAttributeGenerator.java	96.89%	2 Missing and 3 partials ⚠️
...y/javaagent/providers/AwsSpanMetricsProcessor.java	91.48%	0 Missing and 4 partials ⚠️
...t/providers/AttributePropagatingSpanProcessor.java	94.59%	2 Missing ⚠️

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Additional details and impacted files

@@              Coverage Diff              @@
##               main     #689       +/-   ##
=============================================
- Coverage     85.71%   50.73%   -34.99%     
- Complexity       19      264      +245     
=============================================
  Files             3       39       +36     
  Lines            49     1301     +1252     
  Branches          5      141      +136     
=============================================
+ Hits             42      660      +618     
- Misses            3      609      +606     
- Partials          4       32       +28     

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[PaurushGarg]

Removed this Test as it builds the sample app with the released upstream dependencies and not with the snapshot one. I think providing this test here, requires much more work to ensure sample apps are build with java agent that have upstream snapshot versions.

[bryan-aguilar]

Was this job recently added to the nightly build workflow? I am having a bit of trouble tracing the git blame back for it.

[PaurushGarg]

Yes I added it recently in this PR. and I realise now it was a mistake, so removing it with this PR.
I think this testing should be part of nightly build, but putting it in nightlybuild workflows require some prior updates in the repo to facilitate this.