Update: Change maturity status of mautrix-googlechat

Signed-off-by: Jack S. <181536874+awtj8o81ryywg793@users.noreply.github.com>

Author: awtj8o81ryywg793

content/ecosystem/bridges/google_chat/bridges.toml

@@ -2,7 +2,7 @@
 name = "mautrix-googlechat"
 maintainer = "Tulir"
 summary = "A Matrix-Google Chat puppeting bridge"
-maturity = "Beta"
+maturity = "Stable"
 language = "Python"
 license = "AGPL-3.0-or-later"
 docs = "https://docs.mau.fi/bridges/python/setup.html?bridge=googlechat"