[release] Add GPG key for 2.1.0 release
diff --git a/gpg_keys.txt b/gpg_keys.txt
index 7f92662..8d122ad 100644
--- a/gpg_keys.txt
+++ b/gpg_keys.txt
@@ -1 +1,2 @@
 2.0.0=1C1E2394D3194E1944613488F320986D35C33D6A
+2.1.0=1C1E2394D3194E1944613488F320986D35C33D6A