Composer Dev(deps-dev): Bump wp-cli/i18n-command from 2.6.2 to 2.6.3

Bumps [wp-cli/i18n-command](https://github.com/wp-cli/i18n-command) from 2.6.2 to 2.6.3.
- [Release notes](https://github.com/wp-cli/i18n-command/releases)
- [Commits](wp-cli/i18n-command@v2.6.2...v2.6.3)

---
updated-dependencies:
- dependency-name: wp-cli/i18n-command
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

composer.json

@@ -68,7 +68,7 @@
   "require-dev": {
     "roave/security-advisories": "dev-latest",
     "newfold-labs/wp-php-standards": "^1.2.4",
-    "wp-cli/i18n-command": "^2.6.2",
+    "wp-cli/i18n-command": "^2.6.3",
     "wp-phpunit/wp-phpunit": "^6.6.2"
   },
   "require": {