docs: specify default go version 1.17

Author: alexandear

.golangci.reference.yml

@@ -771,9 +771,9 @@ linters-settings:
 
   gosimple:
     # Select the Go version to target.
-    # Default: 1.13
+    # Default: "1.17"
     # Deprecated: use the global `run.go` instead.
-    go: "1.15"
+    go: "1.17"
     # Sxxxx checks in https://staticcheck.io/docs/configuration/options/#checks
     # Default: ["*"]
     checks: [ "all" ]
@@ -1686,18 +1686,18 @@ linters-settings:
 
   staticcheck:
     # Select the Go version to target.
-    # Default: "1.13"
+    # Default: "1.17"
     # Deprecated: use the global `run.go` instead.
-    go: "1.15"
+    go: "1.17"
     # SAxxxx checks in https://staticcheck.io/docs/configuration/options/#checks
     # Default: ["*"]
     checks: [ "all" ]
 
   stylecheck:
     # Select the Go version to target.
-    # Default: 1.13
+    # Default: "1.17"
     # Deprecated: use the global `run.go` instead.
-    go: "1.15"
+    go: "1.17"
     # STxxxx checks in https://staticcheck.io/docs/configuration/options/#checks
     # Default: ["*"]
     checks: [ "all", "-ST1000", "-ST1003", "-ST1016", "-ST1020", "-ST1021", "-ST1022" ]