GCP KMS bugfix (#710)

* replace String.raw`\n` with `\n` in gcp private key

* refactor

* remove redundant sanitisation

src/server/utils/wallets/getGcpKmsAccount.ts

@@ -40,6 +40,18 @@ export async function getGcpKmsAccount(
 ): Promise<GcpKmsAccount> {
   const { name: unprocessedName, clientOptions, client } = options;
 
+  if (clientOptions?.credentials) {
+    if (
+      "private_key" in clientOptions.credentials &&
+      clientOptions.credentials.private_key
+    ) {
+      // https://stackoverflow.com/questions/74131595/error-error1e08010cdecoder-routinesunsupported-with-google-auth-library
+      // new keys are stored correctly with newlines, but older keys need this sanitization for backwards compatibility
+      clientOptions.credentials.private_key =
+        clientOptions.credentials.private_key.split(String.raw`\n`).join("\n");
+    }
+  }
+
   // we had a bug previously where we previously called it "cryptoKeyVersion" instead of "cryptoKeyVersions"
   // if we detect that, we'll fix it here
   // TODO: remove this as a breaking change