chore: add funding

.github/FUNDING.yml

@@ -0,0 +1,3 @@
+github: aldy505
+ko_fi: aldy505
+liberapay: aldy505

.github/workflows/ci.yml

@@ -9,15 +9,15 @@ jobs:
     timeout-minutes: 10
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Install Go
-        uses: actions/setup-go@v2
+        uses: actions/setup-go@v4
         with:
-          go-version: 1.17.x
+          go-version: 1.21.x
 
       - name: Run coverage
         run: go test -v -race -coverprofile=coverage.out -covermode=atomic -failfast ./...
 
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v1
+        uses: codecov/codecov-action@v4

go.mod

@@ -1,3 +1,3 @@
 module github.com/aldy505/decrr
 
-go 1.17
+go 1.21