refactor(runtime): remove JWT key2 min_len validation and update .git…

…ignore

- Remove minimum length validation for key2 in JWT configuration
- Update .gitignore to uncomment "*" for ignoring everything

.gitignore

@@ -513,7 +513,7 @@ FodyWeavers.xsd
 # Recommended: Go.AllowList.gitignore
 
 # Ignore everything
-*
+# *
 
 # But not these files...
 !/.gitignore

proto/security/jwt/v1/config.proto

@@ -30,7 +30,6 @@ message Config {
   ];
   string key2 = 3 [
     json_name = "key2",
-    (validate.rules).string.min_len = 1,
     (gnostic.openapi.v3.property) = {description: "The secondary key used for signing the token."}
   ];
   string keyfunc = 4 [