chore(ci): address melange's latest change

[JGAntunes]

What this PR does / why we need it:

For more context see - https://replicated.slack.com/archives/C0499EGNPNY/p1732733447572059

With the latest melange changes through - chainguard-dev/melange#1622 - our CI pipelines started failing with:

INFO error during command execution: failed to build image components: building layers: building layers: for arch "amd64": installing apk packages: installing packages: installing embedded-cluster-operator (ver:1.19.0+k8s-1.30-59-gf845a740-upgrade-r0 arch:x86_64): unable to update scripts.tar for pkg embedded-cluster-operator: unable to write scripts header for embedded-cluster-operator-1.19.0+k8s-1.30-59-gf845a740-upgrade-r0.Q17P2Pb+0fdYeQTtIVeyqFDm8XEYE=.melange.yaml: archive/tar: cannot encode header: Format specifies USTAR; and USTAR cannot encode Name="embedded-cluster-operator-1.19.0+k8s-1.30-59-gf845a740-upgrade-r0.Q17P2Pb+0fdYeQTtIVeyqFDm8XEYE=.melange.yaml"

The way the name header is built can be seen here:

• https://github.com/chainguard-dev/apko/blob/3680d0fed60f20a0a514a26b49182aa0064c08ce/pkg/apk/apk/installed.go#L158

The change introduced was enough to trip the USTAR 100 byte limit.

To prevent this we're reducing the package name + version we use in the melange.yaml for the operator:

• embedded-cluster/operator/deploy/melange.tmpl.yaml

  Lines 2 to 3 in fa700cd

  	name: embedded-cluster-operator
  	version: ${PACKAGE_VERSION}

This is a quick workaround. We might wanna further reduce the version/name (does it even matter the version we use for the melange package here?) or even have a chat with chainguard to understand what's the best way to overcome this and avoid being hit by this in the near future.

Which issue(s) this PR fixes:

Does this PR require a test?

Does this PR require a release note?

Does this PR require documentation?

[github-actions]

This PR has been released (on staging) and is available for download with a embedded-cluster-smoke-test-staging-app license ID.

Online Installer:

curl "https://staging.replicated.app/embedded/embedded-cluster-smoke-test-staging-app/ci/appver-dev-7ffa2b2" -H "Authorization: $EC_SMOKE_TEST_LICENSE_ID" -o embedded-cluster-smoke-test-staging-app-ci.tgz

Airgap Installer (may take a few minutes before the airgap bundle is built):

curl "https://staging.replicated.app/embedded/embedded-cluster-smoke-test-staging-app/ci-airgap/appver-dev-7ffa2b2?airgap=true" -H "Authorization: $EC_SMOKE_TEST_LICENSE_ID" -o embedded-cluster-smoke-test-staging-app-ci.tgz

Happy debugging!

[JGAntunes]

Fixes the current compiler issue we're facing. Supersedes #1559 and #1558