ci: run generate-idl before verified build

[dev-jodee]

Summary

• Reorder Generate IDL to run before Build verified program in release.yml.
• Fixes the release workflow failing at Generate IDL with Permission denied when creating target/debug.

Root Cause

solana-developers/github-actions/build-verified runs solana-verify inside a Docker container as root, leaving target/ root-owned on the runner. The next step (Generate IDL → cargo check as the runner user) cannot create target/debug and fails with os error 13.

The subscriptions/subscriptions segment in the error path is the standard GitHub Actions checkout layout (/home/runner/work/<repo>/<repo>/), not a duplicated path bug.

IDL generation has no dependency on the verified .so artifact, so swapping the order is safe and avoids a sudo chown workaround tied to action internals.

Test Plan

• Trigger Release workflow manually against devnet from this branch.
• Confirm Generate IDL step succeeds and produces idl/subscriptions.json.
• Confirm Build verified program and Write program buffer continue to succeed.

Failing run for reference: https://github.com/solana-program/subscriptions/actions/runs/25178325752

[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	1805	2118	2003	0.000005000	0.000005080	0.000006001
close_subscription_authority	7	1881	1916	1886	0.000005000	0.000005075	0.000005943
create_fixed_delegation	38	3616	12621	5111	0.000005001	0.000005204	0.000007555
create_plan	84	3540	12553	5043	0.000005001	0.000005201	0.000007521
create_recurring_delegation	27	3640	11145	5146	0.000005001	0.000005205	0.000007573
delete_plan	8	416	416	416	0.000005000	0.000005016	0.000005208
init_subscription_authority	142	9351	25851	12205	0.000005003	0.000005488	0.000011102
revoke_delegation	19	318	585	420	0.000005000	0.000005016	0.000005210
subscribe	21	6666	14166	8247	0.000005002	0.000005329	0.000009123
transfer_fixed	6	10102	13105	11354	0.000005003	0.000005454	0.000010677
transfer_recurring	17	10212	13212	11307	0.000005003	0.000005452	0.000010653
transfer_subscription	10	10495	16446	12300	0.000005003	0.000005492	0.000011150
update_plan	21	424	500	474	0.000005000	0.000005018	0.000005237

Generated: 2026-04-30