Update ec2-metadata requirement from <3,>=2.14.0 to >=2.14.0,<4 (#5454)

Updates the requirements on [ec2-metadata](https://github.com/adamchainz/ec2-metadata) to permit the latest version.
- [Changelog](https://github.com/adamchainz/ec2-metadata/blob/main/CHANGELOG.rst)
- [Commits](adamchainz/ec2-metadata@2.14.0...3.0.0)

---
updated-dependencies:
- dependency-name: ec2-metadata
  dependency-version: 3.0.0
  dependency-type: direct:production
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

requirements-aws.txt

@@ -2,4 +2,4 @@ boto3-stubs[s3,sdb,iam,sts,boto3,ec2,autoscaling]>=1.28.3.post2, <2
 mypy-boto3-iam>=1.28.3.post2, <2 # Need to force .post1 to be replaced
 mypy-boto3-s3>=1.28.3.post2, <2
 moto>=5.0.3, <6
-ec2_metadata>=2.14.0,<3
+ec2_metadata>=2.14.0,<4