docs: Add comprehensive custom certificate authority guide

Closes #2081

See merge request !3068

Merged-by: Tristan Read <tread@gitlab.com>
Approved-by: Juhee Lee <julee@gitlab.com>
Approved-by: Tristan Read <tread@gitlab.com>
Approved-by: Uma Chandran <uchandran@gitlab.com>
Reviewed-by: Tristan Read <tread@gitlab.com>
Reviewed-by: GitLab Duo <gitlab-duo@gitlab.com>
Reviewed-by: Juhee Lee <julee@gitlab.com>
Reviewed-by: Uma Chandran <uchandran@gitlab.com>
Co-authored-by: Rohan Satkar <coderxrohan@gmail.com>

chore(deps): update dependency @gitlab-org/gitlab-lsp to ^8.61.1

See merge request gitlab-org/gitlab-vscode-extension!3084

Merged-by: Tomas Vik <tvik@gitlab.com>
Approved-by: Tomas Vik <tvik@gitlab.com>
Approved-by: Tristan Read <tread@gitlab.com>
Co-authored-by: GitLab Renovate Bot <gitlab-bot@gitlab.com>

chore(deps): update dependency @gitlab-org/gitlab-lsp to ^8.62.2

See merge request !3087

Merged-by: Tristan Read <tread@gitlab.com>

## **release**  [6.68.1](gitlab-org/gitlab-vscode-extension@v6.68.0...v6.68.1) (2026-02-05)
### 📝 Documentation

* Add comprehensive custom certificate authority guide ([900cf035](gitlab-org/gitlab-vscode-extension@900cf035)) by Rohan Satkar

### 🔁 Chore

* **deps:** update dependency @gitlab-org/gitlab-lsp to ^8.61.1 ([2b356b9c](gitlab-org/gitlab-vscode-extension@2b356b9c)) by GitLab Renovate Bot
* **deps:** update dependency @gitlab-org/gitlab-lsp to ^8.62.2 ([81f15f01](gitlab-org/gitlab-vscode-extension@81f15f01)) by Tristan Read

### Language Server Release [8.61.0...8.62.2](gitlab-org/editor-extensions/gitlab-lsp@v8.61.0...v8.62.2)
### [8.61.1](gitlab-org/editor-extensions/gitlab-lsp@v8.61.0...v8.61.1) (2026-02-03)

#### 🐛 Bug Fixes

* **cli:** centralise exit handler, dispose DI container ([0cefe4a](gitlab-org/editor-extensions/gitlab-lsp@0cefe4ab)) by Elwyn Benson
* **cli:** use valid token for git tool with anthriopic backend ([adf4959](gitlab-org/editor-extensions/gitlab-lsp@adf4959b)) by Elwyn Benson

#### ✅ Tests

* **cli:** e2e tests use tmux rather than node-pty ([6a4d352](gitlab-org/editor-extensions/gitlab-lsp@6a4d3521)) by Tomas Vik

### [8.62.0](gitlab-org/editor-extensions/gitlab-lsp@v8.61.1...v8.62.0) (2026-02-04)

#### ✨ Features

* add daily active users tracking in duo CLI ([21b39c9](gitlab-org/editor-extensions/gitlab-lsp@21b39c9f)) by Andrei Zubov

#### 🐛 Bug Fixes

* **cli:** handle shell command actions in UI ([dc2786d](gitlab-org/editor-extensions/gitlab-lsp@dc2786d3)) by Elwyn Benson
* **cli:** redirect mcp server stderr to log file ([232f990](gitlab-org/editor-extensions/gitlab-lsp@232f9900)) by Elwyn Benson
* **duo-chat:** prevent WebSocket connection leaks with ChatSubscription lifecycle management ([bade890](gitlab-org/editor-extensions/gitlab-lsp@bade8905)) by John Slaughter

#### ⚡ Refactor

* **cli:** move backend creation from DI to factories ([12e4044](gitlab-org/editor-extensions/gitlab-lsp@12e40440)) by Elwyn Benson

#### 🔁 Chore

* **cli:** Unify Duo CLI input handling ([d16d39b](gitlab-org/editor-extensions/gitlab-lsp@d16d39b3)) by Tomas Vik

### [8.62.1](gitlab-org/editor-extensions/gitlab-lsp@v8.62.0...v8.62.1) (2026-02-04)

#### 🐛 Bug Fixes

* **cli:** ensure completed message events yield correctly ([749a13b](gitlab-org/editor-extensions/gitlab-lsp@749a13b4)) by Elwyn Benson
* **cli:** remove punycode deprecation warning on startup ([35174e3](gitlab-org/editor-extensions/gitlab-lsp@35174e38)) by Tomas Vik

#### 🔁 Chore

* **deps:** update dependency @gitlab/duo-ui to ^15.8.3 ([66df7f6](gitlab-org/editor-extensions/gitlab-lsp@66df7f6c)) by Olena Horal-Koretska

### [8.62.2](gitlab-org/editor-extensions/gitlab-lsp@v8.62.1...v8.62.2) (2026-02-05)

#### 🐛 Bug Fixes

* ensure proxy settings are applied to WebSocket connections ([627109c](gitlab-org/editor-extensions/gitlab-lsp@627109c3)) by Tristan Read