ci: Bump bootc CI timeout to 2h

The bootc revdep test was timing out at 60 minutes; give it
headroom with a 2-hour limit.

Assisted-by: OpenCode (Claude claude-opus-4-6)
Signed-off-by: Colin Walters <walters@verbum.org>

Author: cgwalters

.github/workflows/bootc-revdep.yml

@@ -22,7 +22,7 @@ jobs:
   bootc-test:
     name: Build and test bootc with local composefs-rs
     runs-on: ubuntu-24.04
-    timeout-minutes: 60
+    timeout-minutes: 120
 
     steps:
       - name: Checkout repository