Update bool conditions.

.github/workflows/test.yml

@@ -63,15 +63,14 @@ jobs:
         run: |
           export CONAN_LLVM_GIT_CACHE="${{ runner.temp }}/llvm-project"
           conan install .. -pr:h default -pr:b default
-          echo "cache-miss=$($?)" >> $GITHUB_OUTPUT
-      - name : Print cache hit/miss
-        run: |
-          echo "Cache was missed: ${{ steps.check_conan_cache.outputs.cache-miss }}"
+          export cache-miss=$($?)
+          echo "cache-miss=$cache-miss" >> $GITHUB_OUTPUT
+          echo "Cache was missed: $cache-miss"
       # If we have a cache miss on 'main', clear the cache.
       # A dependency was updated, so we need to drop the old one
       # to prevent unbounded cache growth over time.
       - name : Clear Conan cache
-        if: github.event_name == 'push' && github.ref == 'refs/heads/main' && ${{ steps.check_conan_cache.outputs.cache-miss }} != '0'
+        if: github.event_name == 'push' && github.ref == 'refs/heads/main' && ${{ steps.check_conan_cache.outputs.cache-miss }} == '1'
         run: |
           rm -rf ./.conan
       - name: Conan install
@@ -93,7 +92,7 @@ jobs:
       # Note: we only update the cache from 'main' to avoid "cache thrashing", which would result in the 'main'
       #       cache getting LRU-evicted for every PR, since a single run uses most of the 10GB repo limit.
       - uses: actions/cache/save@v3
-        if: always() && (github.event_name == 'push' && github.ref == 'refs/heads/main' && steps.conan_install.outcome == 'success' && steps.check_conan_cache.outputs.cache-miss != '0')
+        if: always() && (github.event_name == 'push' && github.ref == 'refs/heads/main' && steps.conan_install.outcome == 'success' && steps.check_conan_cache.outputs.cache-miss == '1')
         with:
           path: .conan
           key: conan-${{ runner.os }}