Task names should be consistent with variable names (drop vs create) in example dags

[vinooganesh]

The task names in the MySqlOperator docs currently are not consistent with the actual operations. This PR fixes that.

[boring-cyborg]

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[vinooganesh]

@ashb - I see that you have reviewed similar changes from other folks. Could I please ask you to quickly look this over?

[potiuk]

Rebased it as it seems that the errors were only "flaky".

[github-actions]

The PR is likely OK to be merged with just subset of tests for default Python and Database versions without running the full matrix of tests, because it does not modify the core of Airflow. If the committers decide that the full tests matrix is needed, they will add the label 'full tests needed'. Then you should rebase to the latest main or amend the last commit of the PR, and push it with --force-with-lease.

[uranusjr]

Need to fix static checks.

[vinooganesh]

@uranusjr @potiuk just fixed the static tests, had to force-push because I had some weirdness on my branch. Hope that's okay. If not, I can re-make the PR

[boring-cyborg]

Awesome work, congrats on your first merged pull request!