ci: squads release action

[dev-jodee]

Summary

• Wire mainnet release to the unmerged prepare-squads-release action from feat: add buffer-only squads release action solana-developers/github-actions#14, pinned to the PR head SHA.
• Keep devnet on the existing direct buffer/write/upgrade path.
• Surface the Squads-owned program buffer, metadata buffer, and verify PDA transaction in the release summary.

Test Plan

• ruby -e "require 'yaml'; YAML.load_file('.github/workflows/release.yml'); puts 'yaml ok'"\n- pnpm exec prettier --check .github/workflows/release.yml\n- pre-push just fmt-check\n- pre-push just lint-check\n\n## Mainnet Test Command\nsh\ngh workflow run release.yml \\\n --ref ci/test-squads-release-action \\\n -f network=mainnet \\\n -f priority-fee=100000\n\n\nDraft only: this is for testing feat: add buffer-only squads release action solana-developers/github-actions#14 before merging that action upstream.

[github-actions]

Compute Unit Report

Instruction	Samples	Min CUs	Max CUs	Avg CUs	Est Cost (Low) [SOL]	Est Cost (Med) [SOL]	Est Cost (High) [SOL]
cancel_subscription	11	1721	2031	1916	0.000005000	0.000005076	0.000005958
close_subscription_authority	7	1804	1834	1808	0.000005000	0.000005072	0.000005904
create_fixed_delegation	38	3510	14015	5001	0.000005001	0.000005200	0.000007500
create_plan	84	3435	12448	4918	0.000005001	0.000005196	0.000007459
create_recurring_delegation	27	3534	9537	4874	0.000005001	0.000005194	0.000007437
delete_plan	8	361	361	361	0.000005000	0.000005014	0.000005180
init_subscription_authority	142	4774	15228	8500	0.000005002	0.000005340	0.000009250
revoke_delegation	19	256	520	354	0.000005000	0.000005014	0.000005177
subscribe	21	6476	10976	7557	0.000005002	0.000005302	0.000008778
transfer_fixed	6	5213	11213	6462	0.000005001	0.000005258	0.000008231
transfer_recurring	17	5325	8325	5798	0.000005001	0.000005231	0.000007899
transfer_subscription	10	5573	10076	6478	0.000005001	0.000005259	0.000008239
update_plan	21	423	502	475	0.000005000	0.000005019	0.000005237

Generated: 2026-05-21

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Project	Deployment	Actions	Updated (UTC)
solana-subscriptions-program	Ready	Preview, Comment	May 21, 2026 2:03pm