go.mod: remove inet.af/netaddr dependency

[darccio]

What does this PR do?

Removes inet.af/netaddr, upgrading github.com/DataDog/appsec-internal-go
(that removes the usage of inet.af/netaddr in DataDog/appsec-internal-go#21).

Motivation

This is needed because of the domain takedown by the Afghan government on several domains. Fixes #2552.

Reviewer's Checklist

• Changed code has unit tests for its functionality at or near 100% coverage.
• System-Tests covering this feature have been added and enabled with the va.b.c-dev version tag.
• There is a benchmark for any new code, or changes to existing code.
• If this interacts with the agent in a new way, a system test has been added.
• Add an appropriate team label so this PR gets put in the right place for the release notes.
• Non-trivial go.mod changes, e.g. adding new modules, are reviewed by @DataDog/dd-trace-go-guild.

For Datadog employees:

• If this PR touches code that handles credentials of any kind, such as Datadog API keys, I've requested a review from @DataDog/security-design-and-guidance.
• This PR doesn't touch any of that.

Unsure? Have a question? Request a review!

[pr-commenter]

Benchmarks

Benchmark execution time: 2024-02-13 08:33:25

Comparing candidate commit d5dce2a in PR branch dario.castane/AIT-9795/inetaf-takedown with baseline commit c95c5e7 in branch main.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 40 metrics, 1 unstable metrics.

[mraerino]

any idea when this is going to be part of a release?

[darccio]

@mraerino We are working on an expedited release. Does the workaround work for you?

[mraerino]

yeah, i think we'll be able to work around, just wanted to make sure when i can expect to properly fix this without a workaround

[darccio]

@mraerino Released as v1.60.3.