Set target-branch: v15 for Dependabot

[ybiquitous]

Which issue, if any, is this issue related to?

Ref:

• Set target-branch:v14 for Dependabot again #5453
• Change target-branch for Dependabot #6439
• Prepare 15.0.0 #6409

Is there anything in the PR that needs further explanation?

We have started preparing v15.0.0 (see #6409).

[changeset-bot]

⚠️ No Changeset found

Latest commit: 4586bb9

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[ntwb]

Approving v15 🚀

Note: If a minor or patch release of v14.x.x is required to be released before v15 is released may need to switch this back for any v14.x.x release, or perform a dependency update if required

[ybiquitous]

@ntwb Thanks for the follow-up. Yes, we may need to revert this PR for v14.x.x releases at future points.

Currently, the following updates (mainly including breaking changes) will be applied to the v15 branch:

$ npm outdated
Package                Current  Wanted  Latest  Location                            Depended by
globby                  11.1.0  11.1.0  13.1.2  node_modules/globby                 stylelint
jest                    28.1.3  28.1.3  29.2.2  node_modules/jest                   stylelint
jest-preset-stylelint    5.0.4   5.0.4   6.0.0  node_modules/jest-preset-stylelint  stylelint
mathml-tag-names         2.1.3   2.1.3   3.0.2  node_modules/mathml-tag-names       stylelint
meow                     9.0.0   9.0.0  11.0.0  node_modules/meow                   stylelint
postcss-import          14.1.0  14.1.0  15.0.0  node_modules/postcss-import         stylelint
string-width             4.2.3   4.2.3   5.1.2  node_modules/string-width           stylelint
strip-ansi               6.0.1   6.0.1   7.0.1  node_modules/strip-ansi             stylelint
write-file-atomic        4.0.2   4.0.2   5.0.0  node_modules/write-file-atomic      stylelint