CI: Include .ex files in cache key

Otherwise changes to elixir tests are not picked up.

Signed-off-by: Peter M <[email protected]>

Author: petermm

.github/workflows/build-and-test.yaml

@@ -474,7 +474,9 @@ jobs:
     - uses: actions/cache@v4
       id: cache
       with:
-        path: 'build/tests/**/*.beam'
+        path: |
+          build/tests/**/*.beam
+          !build/tests/**/libs/exavmlib/**
         key: ${{ matrix.otp }}-${{ hashFiles('**/build-and-test.yaml', 'tests/**/*.erl') }}-${{ matrix.jit_target_arch }}
 
     - name: "Build: run cmake"