Cache verifier cmake (#964)

* Cache CMake generated project files

Signed-off-by: Alan Jowett <alanjo@microsoft.com>

* Cache CMake generated project files

Signed-off-by: Alan Jowett <alanjo@microsoft.com>

* Test

Signed-off-by: Alan Jowett <alanjo@microsoft.com>

* Update reusable-build.yml

Co-authored-by: saxena-anurag <43585259+saxena-anurag@users.noreply.github.com>
Co-authored-by: Dave Thaler <dthaler@microsoft.com>

.github/workflows/reusable-build.yml

@@ -72,6 +72,14 @@ jobs:
       working-directory: ${{env.GITHUB_WORKSPACE}}
       run: nuget restore ${{env.SOLUTION_FILE_PATH}}
 
+    - name: Cache verifier project
+      uses: actions/cache@f63a711791a8e7cc2d5463afc081136e00085800
+      env:
+        cache-name: cache-verifier-project
+      with:
+        path: external/ebpf-verifier/build
+        key: ${{ runner.os }}-${{env.BUILD_PLATFORM}}-${{env.BUILD_CONFIGURATION}}-${{env.BUILD_ARTIFACT_NAME}}-${{ hashFiles('.git/modules/external/ebpf-verifier/HEAD') }}
+
     - name: Create verifier project
       working-directory: ${{env.GITHUB_WORKSPACE}}
       run: |