fix(ci): adapt workflow to use supported npm versions (#5277)

Author: pichlermarc

.github/workflows/benchmark.yml

@@ -10,7 +10,7 @@ jobs:
       fail-fast: false
       matrix:
         node_version:
-          - "18"
+          - "22"
     runs-on: self-hosted
     timeout-minutes: 10
     env:

.github/workflows/unit-test.yml

@@ -32,12 +32,16 @@ jobs:
           node-version: ${{ matrix.node_version }}
 
       - run: npm install -g npm@latest
-        if: ${{ matrix.node_version == '18' || matrix.node_version == '20' || matrix.node_version == '22' }}
+        if: ${{ matrix.node_version == '20' || matrix.node_version == '22' }}
 
       # [email protected] drops support for Node.js v14 and v16
       - run: npm install -g npm@"<10.0.0"
         if: ${{ matrix.node_version == '14' || matrix.node_version == '16' }}
 
+      # [email protected] drops support for Node.js v18
+      - run: npm install -g npm@"<11.0.0"
+        if: ${{ matrix.node_version == '18'}}
+
       - name: Bootstrap
         run: npm ci
 
@@ -65,7 +69,7 @@ jobs:
           cache: 'npm'
           cache-dependency-path: |
             package-lock.json
-          node-version: '18'
+          node-version: '20'
 
       - run: npm install -g npm@latest