chore(deps): update actions/checkout action to v3 (#215)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/workflows/partial-backend.yaml

@@ -7,7 +7,7 @@ jobs:
   Go:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       - name: Set up Go
         uses: actions/setup-go@v2

.github/workflows/partial-frontend.yaml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0
 

.github/workflows/partial-publish.yaml

@@ -20,7 +20,7 @@ jobs:
     name: "Publish Homebox"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Set up Go
         uses: actions/setup-go@v2
         with:

.github/workflows/publish.yaml

@@ -27,7 +27,7 @@ jobs:
       - backend-tests
       - frontend-tests
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: superfly/flyctl-actions/setup-flyctl@master
       - run: flyctl deploy --remote-only
 
@@ -63,7 +63,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout main
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Deploy docs
         uses: mhausenblas/mkdocs-deploy-gh-pages@master