gitlab: 12.8.1 -> 12.8.2 (#81803)

Includes multiple security fixes mentioned in
https://about.gitlab.com/releases/2020/03/04/gitlab-12-dot-8-dot-2-released/
(unfortunately, no CVE numbers as of yet)

 - Directory Traversal to Arbitrary File Read
 - Account Takeover Through Expired Link
 - Server Side Request Forgery Through Deprecated Service
 - Group Two-Factor Authentication Requirement Bypass
 - Stored XSS in Merge Request Pages
 - Stored XSS in Merge Request Submission Form
 - Stored XSS in File View
 - Stored XSS in Grafana Integration
 - Contribution Analytics Exposed to Non-members
 - Incorrect Access Control in Docker Registry via Deploy Tokens
 - Denial of Service via Permission Checks
 - Denial of Service in Design For Public Issue
 - GitHub Tokens Displayed in Plaintext on Integrations Page
 - Incorrect Access Control via LFS Import
 - Unescaped HTML in Header
 - Private Merge Request Titles Leaked via Widget
 - Project Namespace Exposed via Vulnerability Feedback Endpoint
 - Denial of Service Through Recursive Requests
 - Project Authorization Not Being Updated
 - Incorrect Permission Level For Group Invites
 - Disclosure of Private Group Epic Information
 - User IP Address Exposed via Badge images
 - Update postgresql (GitLab Omnibus)

pkgs/applications/version-management/gitlab/data.json

@@ -1,11 +1,11 @@
 {
-  "version": "12.8.1",
-  "repo_hash": "1h844a79scf3an5rv0wi332lrf7mv1zcv2mg6zllk82f7nf341gn",
+  "version": "12.8.2",
+  "repo_hash": "1d27s61kglryr5pashwfq55z7fh16fxkx1m4gc82xihwfzarf4x9",
   "owner": "gitlab-org",
   "repo": "gitlab",
-  "rev": "v12.8.1-ee",
+  "rev": "v12.8.2-ee",
   "passthru": {
-    "GITALY_SERVER_VERSION": "12.8.1",
+    "GITALY_SERVER_VERSION": "12.8.2",
     "GITLAB_PAGES_VERSION": "1.16.0",
     "GITLAB_SHELL_VERSION": "11.0.0",
     "GITLAB_WORKHORSE_VERSION": "8.21.0"