feat: enhance GitHub release tracking with pattern support and version extraction

- Add github_release_pattern field to support multi-product repositories
- Implement get_github_releases_by_pattern() for filtered release matching
- Add parse_github_version_release() to extract version-release components
- Update openbao plugin packages with release patterns and correct versions
- Configure openbao-plugins meta package for manual versioning
- Fix HashiCorp package GitHub repository references
- Support complex tag formats like "secrets-consul-v0.1.0" and "v7.1.3-1"

This enables automatic updates for packages sharing GitHub repos while
maintaining proper RPM version/release semantics and backward compatibility.

rpms/vault/metadata.yaml

@@ -1,18 +1,22 @@
----
-arch: amd64
-builds:
-  - image: git.unkin.net/unkin/almalinux8-rpmbuilder:latest
-    release: '1'
-    repository: [almalinux/el8]
-    version: 1.19.5
-  - image: git.unkin.net/unkin/almalinux9-rpmbuilder:latest
-    release: '1'
-    repository: [almalinux/el9]
-    version: 1.19.5
-description: Vault is a tool for securely accessing secrets. A secret is anything that you want to tightly control access to, such as API keys, passwords, certificates, and more. Vault provides a unified interface to any secret, while providing tight access control and recording a detailed audit log.
+name: vault
 github: hashicorp/vault
+description: Vault is a tool for securely accessing secrets. A secret is anything
+  that you want to tightly control access to, such as API keys, passwords, certificates,
+  and more. Vault provides a unified interface to any secret, while providing tight
+  access control and recording a detailed audit log.
+arch: amd64
+platform: linux
+maintainer: HashiCorp
 homepage: https://github.com/hashicorp/vault
 license: BUSL-1.1
-maintainer: HashiCorp
-name: vault
-platform: linux
+builds:
+- repository:
+  - almalinux/el8
+  image: git.unkin.net/unkin/almalinux8-rpmbuilder:latest
+  release: 1-el8
+  version: 1.21.1
+- repository:
+  - almalinux/el9
+  image: git.unkin.net/unkin/almalinux9-rpmbuilder:latest
+  release: 1-el9
+  version: 1.21.1