Merge pull request #555 from JohnTitor/gha-checkout

Update `actions/checkout` to v2

Author: Alexendoo

.github/workflows/autofix.yml

@@ -13,7 +13,7 @@ jobs:
       RUST_LIB_BACKTRACE: 1
 
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
 
       - name: Configure Git
         run: |

.github/workflows/labeler.yml

@@ -11,7 +11,7 @@ jobs:
     if: github.repository == 'rust-lang/glacier'
 
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
 
       - name: Configure rustup
         run: |

.github/workflows/main.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
 
       - name: Configure rustup
         run: |