[Snyk] Security upgrade alpine from 3.20.3 to 3.21.5

[YounixM]

Snyk has created this PR to fix 4 vulnerabilities in the dockerfile dependencies of this project.

Keeping your Docker base image up-to-date means you’ll benefit from security fixes in the latest version of your chosen image.

Snyk changed the following file(s):

• ee/query-service/Dockerfile

We recommend upgrading to alpine:3.21.5, as this image has only 0 known vulnerabilities. To do this, merge this pull request, then verify your application still works as expected.

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	CVE-2025-26519 SNYK-ALPINE320-MUSL-8720638	364
	CVE-2025-26519 SNYK-ALPINE320-MUSL-8720638	364
	CVE-2025-9230 SNYK-ALPINE320-OPENSSL-13174134	364
	CVE-2025-9231 SNYK-ALPINE320-OPENSSL-13174135	364
	CVE-2025-9232 SNYK-ALPINE320-OPENSSL-13174136	364

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Note

Upgrade ee/query-service Docker base image from alpine:3.20.3 to 3.21.5.

^{Written by Cursor Bugbot for commit 316b843. This will update automatically on new commits. Configure here.}

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[cursor]

Bug: Inconsistent Alpine versions between EE and non-EE

The Alpine upgrade to 3.21.5 only applies to the EE Dockerfile, while pkg/query-service/Dockerfile remains at Alpine 3.20.3. This creates an inconsistent security posture where the non-EE version still contains the CVE vulnerabilities this PR intends to fix, leaving one variant of the query service unpatched.