Unify all go version to 1.20 (#2069)

.github/workflows/test.yml

@@ -21,7 +21,8 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v4.0.0
         with:
-          go-version: 1.19
+          go-version-file: go.mod
+          cache-dependency-path: go.sum
 
       - name: Setup GO env
         run: go env -w CGO_ENABLED=0

.golangci.yml

@@ -365,7 +365,7 @@ linters-settings:
 
   gosimple:
     # Select the Go version to target. The default is '1.13'.
-    go: "1.15"
+    go: "1.20"
     # https://staticcheck.io/docs/options#checks
     checks: ["all"]
 
@@ -515,13 +515,13 @@ linters-settings:
 
   staticcheck:
     # Select the Go version to target. The default is '1.13'.
-    go: "1.15"
+    go: "1.20"
     # https://staticcheck.io/docs/options#checks
     checks: ["all"]
 
   stylecheck:
     # Select the Go version to target. The default is '1.13'.
-    go: "1.15"
+    go: "1.20"
     # https://staticcheck.io/docs/options#checks
     checks:
       ["all", "-ST1000", "-ST1003", "-ST1016", "-ST1020", "-ST1021", "-ST1022"]
@@ -616,7 +616,7 @@ linters-settings:
 
   unused:
     # Select the Go version to target. The default is '1.13'.
-    go: "1.15"
+    go: "1.20"
 
   whitespace:
     multi-if: false # Enforces newlines (or comments) after every multi-line if statement

go.mod

@@ -1,6 +1,6 @@
 module github.com/derailed/k9s
 
-go 1.19
+go 1.20
 
 require (
 	github.com/adrg/xdg v0.4.0