fix(ci): try to fix the macOS build (missing libpq), take 2…

Author: michalrus

.github/workflows/ci.yaml

@@ -61,6 +61,9 @@ jobs:
         run: |
           brew install libpq
           brew link --force libpq
+          echo "LIBRARY_PATH=$(brew --prefix libpq)/lib:$LIBRARY_PATH" >> "$GITHUB_ENV"
+          echo "CPATH=$(brew --prefix libpq)/include:$CPATH" >> "$GITHUB_ENV"
+          echo "PKG_CONFIG_PATH=$(brew --prefix libpq)/lib/pkgconfig:$PKG_CONFIG_PATH" >> "$GITHUB_ENV"
 
       - name: Fast check
         run: cargo check --workspace --all-targets --verbose