Bump sequoia-openpgp from 2.0.0 to 2.1.0

Bumps [sequoia-openpgp](https://gitlab.com/sequoia-pgp/sequoia) from 2.0.0 to 2.1.0.
- [Commits](https://gitlab.com/sequoia-pgp/sequoia/compare/openpgp/v2.0.0...openpgp/v2.1.0)

---
updated-dependencies:
- dependency-name: sequoia-openpgp
  dependency-version: 2.1.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

Cargo.lock

@@ -31,7 +31,7 @@ rsa = "0.9.7"
 sha3 = "0.10.8"
 thiserror = "2.0.12"
 pgp = "0.15.0"
-sequoia-openpgp = "2.0.0"
+sequoia-openpgp = "2.1.0"
 dialoguer = "0.11.0"
 serde = {version = "1.0.219" ,  features = ["derive"] }
 serde_json = "1.0.140"