CI: Set PNPM_STORE_PATH environment variable for DepsScanner (#33605)

Author: alexslavr

.github/workflows/packages_publishing.yml

@@ -42,6 +42,11 @@ jobs:
         with:
           run_install: false
 
+      - name: Get pnpm store directory
+        shell: bash
+        run: |
+          echo "PNPM_STORE_PATH=$(pnpm store path --silent)" >> $GITHUB_ENV
+
       - name: Install dependencies
         run: pnpm install --frozen-lockfile