chore: explicitly set node version and bump pnpm version

Author: shakkernerd

.github/workflows/integrationTests.yaml

@@ -17,11 +17,11 @@ jobs:
 
             - uses: pnpm/action-setup@v3
               with:
-                  version: 9.4.0
+                  version: 9.15.0
 
             - uses: actions/setup-node@v4
               with:
-                  node-version: "23"
+                  node-version: "23.3.0"
                   cache: "pnpm"
 
             - name: Clean up

.github/workflows/smoke-tests.yml

@@ -15,11 +15,11 @@ jobs:
 
             - uses: pnpm/action-setup@v3
               with:
-                  version: 9.4.0
+                  version: 9.15.0
 
             - uses: actions/setup-node@v4
               with:
-                  node-version: "23"
+                  node-version: "23.3.0"
                   cache: "pnpm"
 
             - name: Run smoke tests