0.5.1 - Prevent system transfers in squads

What's Changed

Now when a PMP account already has enough lamports the squads action will skip the system transfer.
So other actions can prefund the accounts.

V0.5.0 - Add export mode

Adds an export mode for releases where the CI keypair has no proposer permission in Squads (#42):

• export: 'true' outputs the combined transaction (program upgrade + IDL update + verify PDA) base58/base64 encoded as the tx output instead of creating the Squads vault transaction on-chain. A multisig member imports it into the Squads transaction builder — one transaction, one approval.
• keypair is optional in export mode; propose mode unchanged.
• Fails with a clear error above the 1232-byte transaction size limit.

Support base58 + base64

Since github actions https://github.com/solana-foundation/github-actions new default exports base58 this action now supports both.

Added support for Program Metadata IDL upload

According to the IDL spec https://github.com/solana-foundation/idl-spec programs should use PMP to upload their IDLs.
So this is now also supported in the squads action that proposed this transaction together with the program upgrade.

Squads support for verify pda and idl and program buffer deployment

This action supports

• Idl Buffer deployment
• Program Buffer deployment
• Verification via Solana Verify