[llvm] [Flang] Github action to check for integration tests (PR #221766)

[Aiden Grossman via llvm-commits]

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@@ -11,6 +11,7 @@ on:
       - "Test Issue Write"
       - "Check LLVM ABI annotations"
       - "Diff test-suite codegen"
+      - "Flang integration test check"
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boomanaiden154 wrote:

The change in this file needs to land in a separate PR if you want to test the `flang-integration-test-check` workflow in this PR.

https://github.com/llvm/llvm-project/pull/221766