add Go 1.14, drop 1.12

.github/workflows/test.yml

@@ -4,10 +4,8 @@ jobs:
   test:
     strategy:
       matrix:
-        go-version: [1.12.9, 1.13]
-        # platform: [ubuntu-latest, macos-latest, windows-latest]
-        # TODO: reenable windows once %LocalAppData% is set
-        platform: [ubuntu-latest, macos-latest]
+        go-version: [1.13.x, 1.14.x]
+        platform: [ubuntu-latest, macos-latest, windows-latest]
     runs-on: ${{ matrix.platform }}
     steps:
     - name: Install Go
@@ -15,6 +13,6 @@ jobs:
       with:
         go-version: ${{ matrix.go-version }}
     - name: Checkout code
-      uses: actions/checkout@v1
+      uses: actions/checkout@v2
     - name: Test
       run: go test ./...

README.md

@@ -2,7 +2,7 @@
 
 [![GoDoc](https://godoc.org/github.com/mvdan/fdroidcl?status.svg)](https://godoc.org/mvdan.cc/fdroidcl)
 
-[F-Droid](https://f-droid.org/) desktop client. Requires Go 1.12 or later.
+[F-Droid](https://f-droid.org/) desktop client. Requires Go 1.13 or later.
 
 	go get -u mvdan.cc/fdroidcl