Update docker.elastic.co/wolfi/chainguard-base-fips:latest Docker digest to 5445ab8 (8.19) (elastic#240498)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| docker.elastic.co/wolfi/chainguard-base-fips | digest | `3f7c6fa` ->
`5445ab8` |

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined),
Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you
are satisfied.

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rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
again.

---

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---

This PR has been generated by [Renovate
Bot](https://redirect.github.com/renovatebot/renovate).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzOS4xMDcuMCIsInVwZGF0ZWRJblZlciI6IjM5LjEwNy4wIiwidGFyZ2V0QnJhbmNoIjoiOC4xOSIsImxhYmVscyI6WyJUZWFtOk9wZXJhdGlvbnMiLCJiYWNrcG9ydDpza2lwIiwiY2k6YnVpbGQtZG9ja2VyLWZpcHMiLCJyZWxlYXNlX25vdGU6c2tpcCJdfQ==-->

Co-authored-by: elastic-renovate-prod[bot] <174716857+elastic-renovate-prod[bot]@users.noreply.github.com>

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src/dev/build/tasks/os_packages/docker_generator/run.ts

@@ -62,7 +62,7 @@ export async function runDockerGenerator(
   if (flags.fips) {
     imageFlavor += '-fips';
     baseImageName =
-      'docker.elastic.co/wolfi/chainguard-base-fips:latest@sha256:3f7c6fa6b922f4622fbc590ff239dfd0ebed8303c26072c4485b7002e809b58b';
+      'docker.elastic.co/wolfi/chainguard-base-fips:latest@sha256:5445ab85975dbcb2cffc6a59a6af52674ae3717746200cbbf8b39323a9f8d0dc';
   }
 
   // General docker var config