⏲ Update `version` in the demos repo `antora.yaml`

[NickLarsenNZ]

Note

This came out of the 25.3.0 Release Retro.

When demo release branch is created, version needs updating (Antora error about duplicate page detected)

stackable-utils/release/create-release-branch.sh

Lines 48 to 63 in f4ffbb5

	update_demos() {
	if [ -d "$BASE_DIR/$DEMOS_REPO" ]; then
	cd "$BASE_DIR/$DEMOS_REPO"
	git pull && git switch "${RELEASE_BRANCH}"
	else
	git clone --branch main --depth 1 "git@github.com:stackabletech/${DEMOS_REPO}.git" "$BASE_DIR/$DEMOS_REPO"
	cd "$BASE_DIR/$DEMOS_REPO"
	git switch "${RELEASE_BRANCH}" || git switch -c "${RELEASE_BRANCH}" "${REMOTE}/${BASE_BRANCH}"
	fi
	# Search and replace known references to stackableRelease, container images, branch references.
	# https://github.com/stackabletech/demos/blob/main/.scripts/update_refs.sh
	.scripts/update_refs.sh commit
	push_branch "$DEMOS_REPO"
	}