chore(plugins): patch-bump gitea for shipped content changes

gitea 1.3.2 -> 1.3.3. The round-1 Vale corpus fix (3324a73) changed
shipped skill content (gitea-issues, gitea-prs, gitea-releases SKILL.md)
without touching this plugin's manifests, so installed copies would keep
serving the old content from cache. Every other plugin whose content
changed in this PR got this bump (bin, kyberforge, lint, four times
total) — gitea was missed each time.

Marketplace entries carry no per-plugin version, so both marketplace.json
files are untouched, matching prior version-bump commits in this PR.

Refs: #85

plugins/gitea/.claude-plugin/plugin.json

@@ -15,5 +15,5 @@
   ],
   "license": "MIT",
   "name": "gitea",
-  "version": "1.3.2"
+  "version": "1.3.3"
 }

plugins/gitea/plugin.json

@@ -20,5 +20,5 @@
   "skills": [
     "skills/"
   ],
-  "version": "1.3.2"
+  "version": "1.3.3"
 }