fix(logger): enable sequential invocation in e2e test

[ghost]

Description of your changes

This PR addresses the issue of the AWS Lambda function invocation mode in the E2E tests for the Logger package.
Previously, multiple function invocations have always been performed in parallel. However, this made all the cold start checks impossible, because parallel invocations cause multiple cold starts.

The invokeFunction helper function now has an additional optional parameter invocationMode with allowed options PARALLEL or SEQUENTIAL. This parameter lets the invokers control how to call the function-under-test.

Note: the parameter is of a union type which differs from the original proposal of a boolean parameter.
The reasoning behind it is simple: it makes the code easier to read.
Compare:

invocationLogs = await invokeFunction(functionName, 2, false); // what does 'false' mean? need to delve

with

invocationLogs = await invokeFunction(functionName, 2, 'SEQUENTIAL'); // 100% clear

How to verify this change

Run the E2E tests for the Logger package. The test should include cold start equal to TRUE only on the first invocation has to pass.
Follow the steps from the Reproduce section from #590. Only one initialization section has to appear.

Related issues, RFCs

#590

PR status

Is this ready for review?: YES
Is it a breaking change?: NO

Checklist

• My changes meet the tenets criteria
• I have performed a self-review of my own code
• I have commented my code where necessary, particularly in areas that should be flagged with a TODO, or hard-to-understand areas
• I have made corresponding changes to the documentation
• I have made corresponding changes to the examples
• My changes generate no new warnings
• The code coverage hasn't decreased
• I have added tests that prove my change is effective and works
• New and existing unit tests pass locally and in Github Actions
• Any dependent changes have been merged and published in downstream module
• The PR title follows the conventional commit semantics

Breaking change checklist

• I have documented the migration process
• I have added, implemented necessary warnings (if it can live side by side)

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[dreamorosi]

Great one, thanks a lot!