chore: fix minor typos and grammar in docs and comments

[Sujit-1509]

Summary

Changes

This PR fixes a few low-risk, beginner-friendly typos and grammar issues found in the documentation and inline comments across the codebase:

• Fixed a duplicate word ("the the") in aws_lambda_powertools/utilities/parameters/ssm.py
• Fixed duplicate words and a spacing typo regarding the Records field in Kinesis documentation (docs/utilities/parser.md)
• Fixed a capitalization and duplicate word error ("THE the") in test comments (tests/functional/event_handler/_pydantic/test_openapi_responses.py)

These changes contain no production logic modifications and solely improve correctness of text.

User experience

Before this change, users reading the parser documentation or developers reading parameter/test comments would encounter small grammar/typography errors. After this change, the text is clean and professional without affecting any runtime behavior or logic.

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[powertools-for-aws-oss-automation]

No related issues found. Please ensure there is an open issue related to this change to avoid significant delays or closure.