Only run integration tests on master.

[anuraaga]

Issue #, if available:

Description of changes:

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

[anuraaga]

This pr obviously doesn't change build logic so something seems to have made the build red, guessing unpinned dependencies. @srprash @lupengamzn is it something you could look at?

[awssandra]

Can we also change the branch name to "main"? Remove non-inclusive wording if you see it :)

[anuraaga]

Github has added support for renaming relatively smoothly, including migrating open PRs, it's just the workflows that may need to be updated. It's probably a good time to go ahead and do it for all our repos indeed.

[srprash]

This pr obviously doesn't change build logic so something seems to have made the build red, guessing unpinned dependencies. @srprash @lupengamzn is it something you could look at?

SQLAlchemy tests are failing due to some changes in the latest version of the library. We would need to pin its version for some of the python version tests. @lupengamzn is taking a look.

[lupengamzn]

This pr obviously doesn't change build logic so something seems to have made the build red, guessing unpinned dependencies. @srprash @lupengamzn is it something you could look at?

The issue should be fixed now by pinning the version of SQLAlchemy and Flask-SQLAlchemy for test.

[codecov-io]

Codecov Report

Merging #277 (db6d0ad) into master (266bc82) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #277   +/-   ##
=======================================
  Coverage   79.58%   79.58%           
=======================================
  Files          83       83           
  Lines        3277     3277           
=======================================
  Hits         2608     2608           
  Misses        669      669           

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