feat(ci): add Docker image build and release workflow

* Implement GitHub Actions workflow for Docker image build and release
* Validate release tags and manage Docker login credentials
* Build and push Docker images with versioning and metadata
* Add docker-build target to Makefile for local image building

pkg/broker/install/install.go

@@ -326,7 +326,7 @@ func execStatements(ctx context.Context, tx adapter.DBTransaction, sqlText strin
 // $$-quoted function bodies intact.
 // splitSQLStatements splits a SQL script into individual statements on
 // top-level semicolons, ignoring semicolons that appear inside single-quoted
-// strings ('...', with '' as an escaped quote), double-quoted identifiers,
+// strings ('...', with ” as an escaped quote), double-quoted identifiers,
 // line comments (--), and dollar-quoted bodies ($$...$$ or $tag$...$tag$).
 func splitSQLStatements(sqlText string) []string {
 	var result []string