Disable Dependabot on default branch (#5452)
Disable Dependabot on default branch (#5452)

Currently, we have mainly developed on the `v14` branch. See #5439.

See also:
https://docs.github.com/en/code-security/supply-chain-security/keeping-your-dependencies-updated-automatically/configuration-options-for-dependency-updates#open-pull-requests-limit
stylelint/stylelint,stylelint/stylelint,stylelint/stylelint,stylelint/stylelint