ci: update sphinx-rtd-theme requirement from <2.0.0,>=1.0.0 to >=1.0.0,<4.0.0#3

dependabot[bot] wants to merge 2 commits intomainstrands-agents/sdk-python:mainfrom

dependabot/pip/sphinx-rtd-theme-gte-1.0.0-and-lt-4.0.0strands-agents/sdk-python:dependabot/pip/sphinx-rtd-theme-gte-1.0.0-and-lt-4.0.0Copy head branch name to clipboard