fix(deps): bump @oclif/core from 1.20.4 to 1.21.0

Bumps [@oclif/core](https://github.com/oclif/core) from 1.20.4 to 1.21.0.
- [Release notes](https://github.com/oclif/core/releases)
- [Changelog](https://github.com/oclif/core/blob/main/CHANGELOG.md)
- [Commits](oclif/core@1.20.4...1.21.0)

---
updated-dependencies:
- dependency-name: "@oclif/core"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -6,7 +6,7 @@
  "bugs": "https://github.com/oclif/plugin-plugins/issues",
  "dependencies": {
  "@oclif/color": "^1.0.1",
- "@oclif/core": "^1.20.0",
+ "@oclif/core": "^1.21.0",
  "chalk": "^4.1.2",
  "debug": "^4.3.4",
  "fs-extra": "^9.0",

yarn.lock

@@ -613,10 +613,10 @@
  supports-color "^8.1.1"
  tslib "^2"
 
-"@oclif/core@^1.0.8", "@oclif/core@^1.2.1", "@oclif/core@^1.20.0", "@oclif/core@^1.20.4", "@oclif/core@^1.6.4":
- version "1.20.4"
- resolved "https://registry.yarnpkg.com/@oclif/core/-/core-1.20.4.tgz#7378b52e1f1b502e383ffb07f95dffc9fd8588ff"
- integrity sha512-giug32M4YhSYNYKQwE1L57/+k5gp1+Bq3/0vKNQmzAY1tizFGhvBJc6GIRZasHjU+xtZLutQvrVrJo7chX3hxg==
+"@oclif/core@^1.0.8", "@oclif/core@^1.2.1", "@oclif/core@^1.20.4", "@oclif/core@^1.21.0", "@oclif/core@^1.6.4":
+ version "1.21.0"
+ resolved "https://registry.yarnpkg.com/@oclif/core/-/core-1.21.0.tgz#d91b2f40a4f446279ab6335c619fc1716fc23ab6"
+ integrity sha512-B/AKYfHcNRAbb6Xz2kj0FlH9gWEi8aFS4iEr7EzguP3E2DpDk4wcf7eOMOfJYEmhuVd9sOpVWSnI2yP+FL/3Sg==
  dependencies:
  "@oclif/linewrap" "^1.0.0"
  "@oclif/screen" "^3.0.3"