[docs] Fix markdown formatting issue in v1.11.66 release notes (#1944)

- Remove extra colons after [cuegui] tags that were causing them to be
incorrectly rendered as reference links in the HTML output

**Link the Issue(s) this Pull Request is related to.**
- #1800

Author: ramonfigueiredo

docs/releases/announcing-the-release-of-opencue-v1.11.66.md

@@ -215,13 +215,13 @@ This release represents a significant modernization of OpenCue with the Rust RQD
 - [docs] Redesign community section buttons for improved layout [#1836](https://github.com/AcademySoftwareFoundation/OpenCue/pull/1836)
 - [docs] Add `Quick Starts` button to homepage hero section [#1835](https://github.com/AcademySoftwareFoundation/OpenCue/pull/1835)
 - [CI/CD] Fix CI Python tests by using python -m pip [#1838](https://github.com/AcademySoftwareFoundation/OpenCue/pull/1838)
-- [cuegui]: Replace unmonitor buttons with dropdown menu in Monitor Jobs [#1841](https://github.com/AcademySoftwareFoundation/OpenCue/pull/1841)
+- [cuegui] Replace unmonitor buttons with dropdown menu in Monitor Jobs [#1841](https://github.com/AcademySoftwareFoundation/OpenCue/pull/1841)
 - [docs] Add OpenCue walkthrough video to documentation pages [#1837](https://github.com/AcademySoftwareFoundation/OpenCue/pull/1837)
 - [CI/CD] Update coverage config and simplify coverage report script [#1842](https://github.com/AcademySoftwareFoundation/OpenCue/pull/1842)
 - [CI/CD] Refactor release pipeline: verify tags and streamline outputs [#1843](https://github.com/AcademySoftwareFoundation/OpenCue/pull/1843)
 - [cuegui] Add descriptive labels to Monitor Jobs action buttons [#1846](https://github.com/AcademySoftwareFoundation/OpenCue/pull/1846)
 - [opencue] Update host wrapper: cache lock state and prevent tag duplication [#1847](https://github.com/AcademySoftwareFoundation/OpenCue/pull/1847)
-- [cuegui]: feat: Replace "Group Dependent" checkbox with "Group By" dropdown [#1849](https://github.com/AcademySoftwareFoundation/OpenCue/pull/1849)
+- [cuegui] feat: Replace "Group Dependent" checkbox with "Group By" dropdown [#1849](https://github.com/AcademySoftwareFoundation/OpenCue/pull/1849)
 - [cuegui] Fix CueGUI performance issues during window operations in CueCommander [#1851](https://github.com/AcademySoftwareFoundation/OpenCue/pull/1851)
 - [cuegui] Fix dependency window sizing for better job name visibility [#1853](https://github.com/AcademySoftwareFoundation/OpenCue/pull/1853)
 - [cuegui] Optimize CueGUI > Cuetopia > Monitor Jobs performance for large job lists [#1855](https://github.com/AcademySoftwareFoundation/OpenCue/pull/1855)