Add nightly dependency bump workflow

[ezhang6811]

Issue #, if available:

Description of changes:
Add a workflow nightly-build.yml with following actions:

• creates or checks out existing nightly-dependency-updates branch
• checks for newest versions of dependencies in opentelemetry-java-instrumentation and opentelemetry-java-contrib, bumps versions if applicable, and creates/updates PR
• search for releases with breaking changes in release notes, and links in the PR
• runs main build checks on the branch, publishes a failure metric based on the outcome.

Example nightly build PR: aws-observability/aws-otel-js-instrumentation#273

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

[codecov-commenter]

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 67.07%. Comparing base (09e6487) to head (60e1e8e).
⚠️ Report is 510 commits behind head on main.
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Additional details and impacted files

@@              Coverage Diff              @@
##               main    #1219       +/-   ##
=============================================
- Coverage     85.71%   67.07%   -18.64%     
- Complexity       19      525      +506     
=============================================
  Files             3       54       +51     
  Lines            49     2694     +2645     
  Branches          5      376      +371     
=============================================
+ Hits             42     1807     +1765     
- Misses            3      750      +747     
- Partials          4      137      +133     

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