Cache npm

Only test on different node versions

Author: w3nl

.github/workflows/cpd.yml

@@ -7,16 +7,13 @@ jobs:
 
     runs-on: ubuntu-latest
 
-    strategy:
-      matrix:
-        node-version: [18.x]
-
     steps:
     - uses: actions/checkout@v3
-    - name: Use Node.js ${{ matrix.node-version }}
+    - name: Use Node.js 18
       uses: actions/setup-node@v3
       with:
-        node-version: ${{ matrix.node-version }}
+        node-version: 18
+        cache: 'npm'
     - name: npm lint
       run: |
         npm ci

.github/workflows/lint.yml

@@ -7,16 +7,13 @@ jobs:
 
     runs-on: ubuntu-latest
 
-    strategy:
-      matrix:
-        node-version: [18.x]
-
     steps:
     - uses: actions/checkout@v3
-    - name: Use Node.js ${{ matrix.node-version }}
+    - name: Use Node.js 18
       uses: actions/setup-node@v3
       with:
-        node-version: ${{ matrix.node-version }}
+        node-version: 18
+        cache: 'npm'
     - name: npm lint
       run: |
         npm ci

.github/workflows/sonarcloud.yml

@@ -7,16 +7,13 @@ jobs:
 
     runs-on: ubuntu-latest
 
-    strategy:
-      matrix:
-        node-version: [18.x]
-
     steps:
     - uses: actions/checkout@v2
-    - name: Use Node.js ${{ matrix.node-version }}
+    - name: Use Node.js 18
       uses: actions/setup-node@v1
       with:
-        node-version: ${{ matrix.node-version }}
+        node-version: 18
+        cache: 'npm'
     - name: npm install, lint, and test
       run: |
         npm ci

.github/workflows/vulnerabilities.yml

@@ -7,16 +7,13 @@ jobs:
 
     runs-on: ubuntu-latest
 
-    strategy:
-      matrix:
-        node-version: [18.x]
-
     steps:
     - uses: actions/checkout@v3
-    - name: Use Node.js ${{ matrix.node-version }}
+    - name: Use Node.js 18
       uses: actions/setup-node@v3
       with:
-        node-version: ${{ matrix.node-version }}
+        node-version: 18
+        cache: 'npm'
     - name: npm lint
       run: |
         npm ci