[CI] Add setup.py pycti/connectors-sdk replacement for rolling and prerelease builds

[Copilot]

Rolling and prerelease Docker builds correctly rewrite pycti==<version> to a git-ref URL in requirements.txt and pyproject.toml, but setup.py was never handled — connectors using setup.py for dependencies would silently ship the pinned PyPI release instead of the master/branch ref.

Changes

• .circleci/templates/dynamic.yml.j2

  • Added find . -name setup.py -exec sed … replacement commands for both pycti and connectors-sdk in the prerelease (uses $CIRCLE_BRANCH) and rolling (uses $RELEASE_REF) build blocks, matching the existing pattern used for pyproject.toml
  • Removed a stray bare URL line in the prerelease block — a bash no-op leftover that caused a silent git: unknown subcommand error on every prerelease build

• .gitignore — added dynamic.yml (the generated CI continuation config) to prevent it from being accidentally committed

Pattern applied to setup.py (rolling example)

find . -name setup.py -exec sed \
  "s|pycti==.*$|pycti @ git+https://github.com/OpenCTI-Platform/opencti.git@$RELEASE_REF#subdirectory=client-python\",|" \
  -i {} \;
find . -name setup.py -exec sed \
  "s|connectors-sdk.*$|connectors-sdk @ git+https://github.com/OpenCTI-Platform/connectors.git@$RELEASE_REF#subdirectory=connectors-sdk\",|" \
  -i {} \;