docs/release-process.md: use consistent placeholder syntax (ansible-c…

…ommunity#319)

There was one placeholder value missed in f9a48c3.

Relates: f9a48c3

docs/release-process.md

@@ -104,7 +104,7 @@ This only needs to be done once.
    cd build/ansible-build-data
    git switch -c release-${VERSION}
    git add ${MAJOR_VERSION}/
-   git commit -m "Ansible {VERSION}: Dependencies, changelog and porting guide"
+   git commit -m "Ansible ${VERSION}: Dependencies, changelog and porting guide"
    git push -u ${USERNAME} release-${VERSION}
    ```