chore: Memory align structs

[mrueg]

What this PR does / why we need it:
This might shave off some bytes here and there using https://github.com/dkorunic/betteralign

pkg/metric_generator/generator.go:32:22: 16 bytes saved: struct with 96 pointer bytes could be 80
pkg/metrics_store/metrics_store.go:31:19: 40 bytes saved: struct with 64 pointer bytes could be 24
pkg/options/options.go:42:14: 24 bytes saved: struct of size 384 could be 360
internal/store/builder.go:67:14: 8 bytes saved: struct of size 200 could be 192
internal/store/pod.go:1351:16: 8 bytes saved: struct with 16 pointer bytes could be 8
internal/store/pod.go:1477:20: 8 bytes saved: struct with 16 pointer bytes could be 8
internal/store/testutils.go:32:30: 16 bytes saved: struct with 136 pointer bytes could be 120
pkg/metricshandler/metrics_handler.go:46:21: 8 bytes saved: struct of size 104 could be 96
internal/discovery/types.go:39:19: 32 bytes saved: struct with 88 pointer bytes could be 56
pkg/customresourcestate/config.go:51:15: 16 bytes saved: struct with 112 pointer bytes could be 96
pkg/customresourcestate/config.go:134:16: 8 bytes saved: struct with 88 pointer bytes could be 80
pkg/customresourcestate/config.go:150:13: 8 bytes saved: struct with 40 pointer bytes could be 32
pkg/customresourcestate/config_metrics_types.go:29:18: 8 bytes saved: struct with 64 pointer bytes could be 56
pkg/customresourcestate/config_metrics_types.go:42:17: 8 bytes saved: struct with 40 pointer bytes could be 32
pkg/customresourcestate/registry_factory.go:125:21: 8 bytes saved: struct with 40 pointer bytes could be 32
pkg/customresourcestate/registry_factory.go:212:20: 16 bytes saved: struct with 88 pointer bytes could be 72
pkg/customresourcestate/registry_factory.go:377:23: 8 bytes saved: struct with 104 pointer bytes could be 96
pkg/customresourcestate/registry_factory.go:497:21: 8 bytes saved: struct with 64 pointer bytes could be 56
pkg/customresourcestate/registry_factory.go:549:13: 8 bytes saved: struct with 24 pointer bytes could be 16

How does this change affect the cardinality of KSM: (increases, decreases or does not change cardinality)
None
Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #

[logicalhan]

/triage accepted

[CatherineF-dev]

Cool!
/lgtm
/hold

Feel free to unhold

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: CatherineF-dev, mrueg

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[mrueg]

/unhold