Upgrade dependabot php version from 7.4 to 8.1.

[thavaahariharangit]

What are you trying to accomplish?

upgrading dependabot's php version from 7 to 8

As php 7 is getting obsolete from the market, I hope this is the right time to upgrade the dependabot php version from 7 to 8

Monolog 3.6 stop supporting php 7

this issue we have found out in out our internal e2e testing

Recreated the same here

Anything you want to highlight for special attention from reviewers?

work is not completed, this is a discussion PR

How will you know you've accomplished your goal?

Not yet completed, need to check with @abdulapopoola and team, about this changes.

Checklist

• I have run the complete test suite to ensure all tests and linters pass.
• I have thoroughly tested my code changes to ensure they work as expected, including adding additional tests for new functionality.
• I have written clear and descriptive commit messages.
• I have provided a detailed description of the changes in the pull request, including the problem it addresses, how it fixes the problem, and any relevant details about the implementation.
• I have ensured that the code is well-documented and easy to understand.

[vintagesucks]

What about #6506?

[thavaahariharangit]

What about #6506?

Thanks @vintagesucks , I will close this PR