github: pnpm 7 -> 8

Author: attente

.github/actions/install-dependencies/action.yml

@@ -7,7 +7,7 @@ runs:
     - name: Setup PNPM
       uses: pnpm/action-setup@v2
       with:
-        version: 7
+        version: 8
         run_install: false
 
     - name: Get pnpm store directory