Sync repo templates ⚙

Sync with coreos/repo-templates@f147a34.

.github/ISSUE_TEMPLATE/release-checklist.md

@@ -25,13 +25,13 @@ Fedora packaging:
  - [ ] Run `kinit [email protected]`
  - [ ] Run `fedpkg new-sources $(spectool -S butane.spec | sed 's:.*/::')`
  - [ ] PR the changes in [Fedora](https://src.fedoraproject.org/rpms/butane)
- - [ ] Once the PR merges to rawhide, merge rawhide into the other relevant branches (e.g. f39) then push those, for example:
+ - [ ] Once the PR merges to rawhide, merge rawhide into the other relevant branches (e.g. f40) then push those, for example:
    ```bash
    git checkout rawhide
    git pull --ff-only
-   git checkout f39
+   git checkout f40
    git merge --ff-only rawhide
-   git push origin f39
+   git push origin f40
    ```
  - [ ] On each of those branches run `fedpkg build` including rawhide.
  - [ ] Once the builds have finished, submit them to [bodhi](https://bodhi.fedoraproject.org/updates/new), filling in:

signing-ticket.sh

@@ -15,11 +15,11 @@ make_script() {
 #!/bin/bash
 set -eux -o pipefail
 
-# Use the Fedora 39 key for the detached signatures
-KEYTOSIGNWITH='fedora-39'
+# Use the Fedora 40 key for the detached signatures
+KEYTOSIGNWITH='fedora-40'
 
-VR='@@VERSION@@-@@RELEASE@@.fc39'
-RPMKEY='18b8e74c' # Fedora 39 key
+VR='@@VERSION@@-@@RELEASE@@.fc40'
+RPMKEY='a15b79cc' # Fedora 40 key
 
 do_sign() {
     # Sign with sigul unless FAKESIGN=1