Bump @aws-sdk/credential-providers from 3.966.0 to 3.975.0

Bumps [@aws-sdk/credential-providers](https://github.com/aws/aws-sdk-js-v3/tree/HEAD/packages/credential-providers) from 3.966.0 to 3.975.0.
- [Release notes](https://github.com/aws/aws-sdk-js-v3/releases)
- [Changelog](https://github.com/aws/aws-sdk-js-v3/blob/main/packages/credential-providers/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-js-v3/commits/v3.975.0/packages/credential-providers)

---
updated-dependencies:
- dependency-name: "@aws-sdk/credential-providers"
  dependency-version: 3.975.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package.json

@@ -19,7 +19,7 @@
     "rebuild-timelines": "tsx --env-file-if-exists=.env scripts/rebuild-timelines.ts"
   },
   "dependencies": {
-    "@aws-sdk/credential-providers": "^3.966.0",
+    "@aws-sdk/credential-providers": "^3.975.0",
     "@fedify/fedify": "~1.10.2",
     "@fedify/hono": "~1.10.2",
     "@fedify/markdown-it-hashtag": "~0.3.0",