feat: introduce content manifest with content sets #736

	name: Block buildah-remote-oci-ta size increase
	"on":
	pull_request:
	branches: [main]

	jobs:
	check:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout repository
	uses: actions/checkout@v4

	- name: Check that the size of buildah-remote-oci-ta doesn't increase
	run: \|
	#!/bin/bash
	set -euo pipefail

	buildah_remote_oci_ta=task/buildah-remote-oci-ta/0.2/buildah-remote-oci-ta.yaml
	# 34172 is the largest that the file has ever been and worked.
	# 34200 is known to be too large (see b2f800cc603ec0907ad2b3962d46919a535e158e,
	# which had to be reverted). The actual limit is somewhere in between.
	safe_size=34172
	current_size=$(wc -c < "$buildah_remote_oci_ta")

	if [[ "$current_size" -gt "$safe_size" ]]; then
	cat << EOF >&2
	This PR increases the size of $buildah_remote_oci_ta beyond the known safe limit.

	safe_size=$safe_size
	current_size=$current_size

	Due to https://github.com/tektoncd/pipeline/issues/8388, this is risky;
	the resulting bundle may not be resolvable by Tekton.

	Until the fix for the above issue is deployed in Konflux, your PR is blocked.
	Sorry!
	EOF
	exit 1
	fi

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