signArc60Data takes an optional `scheme`, as proposed for ARC-60 in
algorandfoundation/ARCs#494 and already sent by use-wallet 5.1
(TxnLab/use-wallet#473) and Lute.

- ed25519 requests (no scheme, or "ed25519") go out exactly as before,
  with `signer` as an address.
- Any other scheme sends `signer` as base64 of the key, since a Falcon
  address is a hash of its key, and `scheme` beside it for the wallet
  to check. The response keeps both.
- verifySignature only handles ed25519. For another scheme it throws
  SIGN_DATA_VERIFICATION_UNSUPPORTED before the wallet is asked.
- signArc60Data no longer encodes the signer as an address after the
  wallet answers when it isn't verifying, which would have thrown away
  a Falcon signature.

Pera versions that don't sign Falcon ARC-60 yet reject these requests:
their wire schema caps `signer` at 128 characters.

Bumps [github/codeql-action/init](https://github.com/github/codeql-action) from 4.38.2 to 4.38.3.
- [Release notes](https://github.com/github/codeql-action/releases)
- [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md)
- [Commits](https://github.com/github/codeql-action/compare/2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2...24c54180a607b1449ed407dd24f251e4e9147c8d)

---
updated-dependencies:
- dependency-name: github/codeql-action/init
  dependency-version: 4.38.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Bumps [github/codeql-action/analyze](https://github.com/github/codeql-action) from 4.38.2 to 4.38.3.
- [Release notes](https://github.com/github/codeql-action/releases)
- [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md)
- [Commits](https://github.com/github/codeql-action/compare/2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2...24c54180a607b1449ed407dd24f251e4e9147c8d)

---
updated-dependencies:
- dependency-name: github/codeql-action/analyze
  dependency-version: 4.38.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 6.4.0 to 7.1.0.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](https://github.com/actions/setup-node/compare/48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e...949feb2413d6458794dcd2491c4babbbce0c15c1)

---
updated-dependencies:
- dependency-name: actions/setup-node
  dependency-version: 7.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>