Change maturity status of LINE bridge to Obsolete (#3062)

Signed-off-by: Jakob Y. <[email protected]>

Author: salixh5

content/ecosystem/bridges/line/bridges.toml

@@ -7,7 +7,7 @@ A Matrix-LINE puppeting bridge based on running LINE's Chrome extension in
 
 Fork of [mautrix-amp](https://mau.dev/tulir/mautrix-amp/).
 """
-maturity = "Beta"
+maturity = "Obsolete"
 language = "Python, Node"
 license = "AGPL-3.0-or-later"
 repo = "https://src.miscworks.net/fair/matrix-puppeteer-line.git"