Moved linting to it's own step, removed duplicates

.github/workflows/build.yml

@@ -81,6 +81,26 @@ jobs:
             echo "::set-output name=hotfix_branch_exists::0"
           fi
 
+  lint:
+    name: Lint
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@a12a3943b4bdde767164f792f33f40b04645d846
+
+      - name: Cache npm
+        id: npm-cache
+        uses: actions/cache@937d24475381cd9c75ae6db12cb4e79714b926ed
+        with:
+          path: '~/.npm'
+          key: ${{ runner.os }}-npm-${{ hashFiles('**/package-lock.json') }}
+
+      - name: Install Node dependencies
+        run: npm ci
+
+      - name: Run linter
+        run: npm run lint
+
 
   linux:
     name: Linux Build
@@ -130,9 +150,6 @@ jobs:
       - name: Install Node dependencies
         run: npm ci
 
-      - name: Run linter
-        run: npm run lint
-
       - name: Build application
         run: npm run dist:lin
 
@@ -242,9 +259,6 @@ jobs:
       - name: Install Node dependencies
         run: npm ci
 
-      - name: Run linter
-        run: npm run lint
-
       - name: Build & Sign (dev)
         env:
           ELECTRON_BUILDER_SIGN: 1
@@ -496,9 +510,6 @@ jobs:
       - name: Install Node dependencies
         run: npm ci
 
-      - name: Run linter
-        run: npm run lint
-
       - name: Build application (dev)
         run: npm run build