Bump rocm-docs-core from 0.18.2 to 0.18.4 in /docs/sphinx (#796)

Bumps [rocm-docs-core](https://github.com/RadeonOpenCompute/rocm-docs-core) from 0.18.2 to 0.18.4.
- [Release notes](https://github.com/RadeonOpenCompute/rocm-docs-core/releases)
- [Changelog](https://github.com/RadeonOpenCompute/rocm-docs-core/blob/develop/CHANGELOG.md)
- [Commits](https://github.com/RadeonOpenCompute/rocm-docs-core/compare/v0.18.2...v0.18.4)

---
updated-dependencies:
- dependency-name: rocm-docs-core
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

docs/sphinx/requirements.in

@@ -1 +1 @@
-rocm-docs-core==0.18.2
+rocm-docs-core==0.18.4

docs/sphinx/requirements.txt

@@ -50,8 +50,6 @@ jinja2==3.1.2
     # via
     #   myst-parser
     #   sphinx
-linkify-it-py==1.0.3
-    # via myst-parser
 markdown-it-py==2.2.0
     # via
     #   mdit-py-plugins
@@ -62,7 +60,7 @@ mdit-py-plugins==0.3.5
     # via myst-parser
 mdurl==0.1.2
     # via markdown-it-py
-myst-parser[linkify]==1.0.0
+myst-parser==1.0.0
     # via rocm-docs-core
 packaging==23.0
     # via
@@ -94,7 +92,7 @@ requests==2.31.0
     # via
     #   pygithub
     #   sphinx
-rocm-docs-core==0.18.2
+rocm-docs-core==0.18.4
     # via -r requirements.in
 smmap==5.0.0
     # via gitdb
@@ -137,8 +135,6 @@ sphinxcontrib-serializinghtml==1.1.5
     # via sphinx
 typing-extensions==4.5.0
     # via pydata-sphinx-theme
-uc-micro-py==1.0.1
-    # via linkify-it-py
 urllib3==1.26.15
     # via requests
 wrapt==1.15.0