bib: bump go to v1.21 and images lib to v0.69.0

[yoheiueda]

This patch bumps the version of the images library to v0.69.0 as well as go to v1.21, since the library requires the Go version.

This version includes a necessary fix to support partition layouts for non-UEFI platforms. osbuild/images#758

I created this patch using the following commands.

go mod edit -go 1.21 -require github.com/osbuild/images@v0.69.0
go mod tidy

[yoheiueda]

images v0.69.0 causes the following lint error.

https://github.com/osbuild/bootc-image-builder/actions/runs/9757284982/job/26997810315?pr=515#step:6:31

Running [/home/runner/golangci-lint-1.55.2-linux-amd64/golangci-lint run --path-prefix=bib --timeout 5m0s] in [/home/runner/work/bootc-image-builder/bootc-image-builder/bib] ...
  Error: bib/cmd/bootc-image-builder/partition_tables.go:4:2: "github.com/osbuild/images/pkg/arch" imported and not used (typecheck)
  	"github.com/osbuild/images/pkg/arch"
  	^
  
  Error: issues found

This error was due to the lack of build tags specified to golangci-lint

bootc-image-builder/build.sh

Line 7 in f5e218a

CONTAINERS_STORAGE_THIN_TAGS="containers_image_openpgp exclude_graphdriver_btrfs exclude_graphdriver_devicemapper"

[achilleas-k]

You need to also update the go version in the Lint & unittests job, otherwise the runner will use go 1.20 to lint the project. This always results in weird errors like the ones we're seeing (unused imports).

The build flags added in the second commit shouldn't be necessary.

[achilleas-k]

I updated the Go version in the GitHub workflow.

[mvo5]

Thank you!

[achilleas-k]

The konflux job is stuck waiting for approval but I don't see any way to approve it -_-

[achilleas-k]

Never mind. The PR was just blocked on my previews request for changes.