Install clang into correct job

Author: helgoboss

.github/workflows/linux-x86_64.yml

@@ -14,10 +14,6 @@ jobs:
     name: Check
     runs-on: ubuntu-latest
     steps:
-      - name: Set up dependencies
-        run: |
-          sudo apt-get update
-          sudo apt-get install clang
       - uses: actions/checkout@v2
         with:
           submodules: recursive
@@ -38,6 +34,10 @@ jobs:
       - uses: actions/checkout@v2
         with:
           submodules: recursive
+      - name: Set up dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install clang
       - uses: actions-rs/toolchain@v1
         with:
           profile: minimal