Update axios to 1.8.2 in e2e tests

[rockdaboot]

Fixes https://github.com/elastic/apm-aws-lambda/security/dependabot/43

[dmathieu]

This goes a major bump. Are we sure there aren't any untested breaking changes?
cc @trentm

[trentm]

I guess I don't have perms on this repo to view https://github.com/elastic/apm-aws-lambda/security/dependabot/43

[trentm]

These e2e-testing bits are, I gather, very out of date. It looks like the e2e-testing bits aren't run regularly.

• this axios update is fine, the small "app.js" in this package isn't even using the axios dep, so it could be removed.

This sam-testing-nodejs dir was adapted from a small aws-sam-cli test package that now lives here: https://github.com/aws/aws-sam-cli/tree/develop/samcli/lib/init/templates/cookiecutter-aws-sam-hello-nodejs/%7B%7Bcookiecutter.project_name%7D%7D/hello-world
That includes a dep on axios, but has any code using axios commented out.
The adapted copy here did not copy over the unit tests, so:

• the devDependencies could all be removed as well

• As well, the elastic-apm-node dependency is on an old major, the current supported versions are 4.x.

@rockdaboot Do you have a preference here? We could (a) take this PR as is; (b) use this or a separate PR to make these other updates. I'm happy to do the quick updates for (b).

[rockdaboot]

Do you have a preference here? We could (a) take this PR as is; (b) use this or a separate PR to make these other updates. I'm happy to do the quick updates for (b).

@trentm It looks like (b) would be the proper thing to do. I'd would be great if you can do it!

[trentm]

It looks like (b) would be the proper thing to do. I'd would be great if you can do it!

#626

[rockdaboot]

Closing in favor of #626