Bump up version to v0.12.1

Author: wata727

CHANGELOG.md

@@ -1,3 +1,10 @@
+## 0.12.1 (2021-09-12)
+
+### BugFixes
+
+- [#118](https://github.com/terraform-linters/tflint-ruleset-google/pull/118): build: Update GoReleaser version
+  - v0.12.0 release doesn't include darwin/arm64 build. This change fixes the issue.
+
 ## 0.12.0 (2021-09-12)
 
 ### Enhancements

README.md

@@ -17,7 +17,7 @@ You can install the plugin by adding a config to `.tflint.hcl` and running `tfli
 ```hcl
 plugin "google" {
     enabled = true
-    version = "0.12.0"
+    version = "0.12.1"
     source  = "github.com/terraform-linters/tflint-ruleset-google"
 }
 ```

project/main.go

@@ -3,7 +3,7 @@ package project
 import "fmt"
 
 // Version is ruleset version
-const Version string = "0.12.0"
+const Version string = "0.12.1"
 
 // ReferenceLink returns the rule reference link
 func ReferenceLink(name string) string {