go.mod: upgraded github.com/DataDog/go-libddwaf v1.4.2 => v1.5.0

[eliottness]

What does this PR do?

$ go get -u -v github.com/DataDog/go-libddwaf@v1.5.0
go: downloading github.com/DataDog/go-libddwaf v1.5.0
go: upgraded github.com/DataDog/go-libddwaf v1.4.2 => v1.5.0
go: upgraded github.com/ebitengine/purego v0.5.0-alpha => v0.5.0-alpha.0.20230803142445-813050efbc99

Motivation

Condensed changelog of go-libddwaf:

• Fix Bazel compilation issue (cf. Bazel build of purego failing ebitengine/purego#144)
• Bump go-liddwaf to 1.10.0 (no breaking change on libddwaf side)
• Add support for (*Handle).Update binding to ddwaf_update

Reviewer's Checklist

• Changed code has unit tests for its functionality at or near 100% coverage.
• 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.

[eliottness]

Here are the Smoke Tests and the Appsec Tests workflows

[pr-commenter]

Benchmarks

Benchmark execution time: 2023-08-04 11:06:17

Comparing candidate commit 43ffa83 in PR branch eliott.bouhana/bump-go-libddwaf with baseline commit c4cf034 in branch main.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 39 metrics, 2 unstable metrics.

[eliottness]

Cc @Hellzy