CI: Update action/checkout to v3

[why]
* Automatically does a shallow checkout, what we want anyhow
* Keep up to date

Signed-off-by: Fini Jastrow <ulf.fini.jastrow@desy.de>

.github/workflows/docker-release.yml

@@ -16,7 +16,7 @@ jobs:
     name: Publish image
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Build image
         run: docker build -t nerdfonts/patcher .
       - name: Push image

.github/workflows/font-patcher.yml

@@ -24,7 +24,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v1
+        uses: actions/checkout@v3
 
       - name: Setup core dependencies
         run: |

.github/workflows/release.yml

@@ -27,10 +27,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
-        with:
-          ref: master
-          fetch-depth: '1'
+      - uses: actions/checkout@v3
       -
         id: set-matrix
         run: |
@@ -60,11 +57,7 @@ jobs:
 
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
-      - uses: actions/checkout@v2
-        with:
-          ref: master
-          fetch-depth: '1'
-
+      - uses: actions/checkout@v3
       - name: Set release variables
         run: |
           cd -- "$GITHUB_WORKSPACE"
@@ -177,8 +170,7 @@ jobs:
 
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-
+      - uses: actions/checkout@v3
       - name: Set release variables
         run: |
           cd -- "$GITHUB_WORKSPACE"
@@ -206,8 +198,7 @@ jobs:
     needs: build
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-
+      - uses: actions/checkout@v3
       - name: Download patched fonts from build
         id: download-patched-fonts
         uses: actions/download-artifact@v2