Bump rocm-docs-core from 1.14.1 to 1.15.0 in /docs/sphinx (#3787)

Author: dependabot[bot]

docs/sphinx/requirements.in

@@ -1,2 +1,2 @@
-rocm-docs-core==1.14.1
+rocm-docs-core==1.15.0
 sphinx-collapse

docs/sphinx/requirements.txt

@@ -212,7 +212,7 @@ requests==2.32.3
     # via
     #   pygithub
     #   sphinx
-rocm-docs-core==1.14.1
+rocm-docs-core==1.15.0
     # via -r requirements.in
 rpds-py==0.22.3
     # via