Update Go to 1.21, actions workflow dependencies, and golang.org/x/sys to address security vulnerability

Author: samcoe

.github/workflows/push.yml

@@ -5,17 +5,17 @@ jobs:
   test:
     strategy:
       matrix:
-        go: [ '1.14', '1.20' ]
+        go: [ '1.21' ]
         os: [ ubuntu-latest, macos-latest, windows-latest ]
       fail-fast: false
-    
+
     runs-on: ${{ matrix.os }}
     name: Test suite
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Setup go
-        uses: actions/setup-go@v1
+        uses: actions/setup-go@v4
         with:
           go-version: ${{ matrix.go }}
       - run: go test -v ./...

README.md

@@ -7,7 +7,7 @@ This fork adds:
 
 - `OpenReader` error wrapping;
 - `ErrNotFound` error wrapping on BSD;
-- Go 1.13 support.
+- Go 1.21 support.
 
 ## Usage
 

go.mod

@@ -1,5 +1,5 @@
 module github.com/cli/browser
 
-go 1.14
+go 1.21
 
-require golang.org/x/sys v0.0.0-20210616045830-e2b7044e8c71
+require golang.org/x/sys v0.13.0

go.sum

@@ -1,2 +1,2 @@
-golang.org/x/sys v0.0.0-20210616045830-e2b7044e8c71 h1:X/2sJAybVknnUnV7AD2HdT6rm2p5BP6eH2j+igduWgk=
-golang.org/x/sys v0.0.0-20210616045830-e2b7044e8c71/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.13.0 h1:Af8nKPmuFypiUBjVoU9V20FiaFXOcuZI21p0ycVYYGE=
+golang.org/x/sys v0.13.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=