chore(deps): bump nixpkgs from 419fe0f to f45c6f0 in the nix group

[dependabot]

Bumps the nix group with 1 update: nixpkgs.

Updates nixpkgs from 419fe0f to f45c6f0

Commits

• f45c6f0 glitchtip: support django-async-backend>=6.1 (#567847)
• 695d395 mago: 1.49.0 -> 1.50.0 (#567781)
• 7616846 claude-agent-acp: 0.79.0 -> 0.81.2 (#567689)
• d4515b5 mattermostLatest: 11.10.2 -> 11.11.0 (#565972)
• 8fac26b webkitgtk: 2.52.6 -> 2.54.0 (#567572)
• 3ad929f anarchism: 15.3-1 -> 15.3-4 (#567829)
• 2afe94d bcc: remove refs to LLVM static libs that bloated closure (#562660)
• bfc8861 perlPackages.*: fix homepages (#566986)
• 14a1c72 gradm: mark as broken on aarch64-linux (last successful Hydra build 2018) (#5...
• 34fcbb5 thunderbird-esr-bin-unwrapped: 153.3.0esr -> 153.3.1esr (#567441)
• Additional commits viewable in compare view

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[meshcloud-gh-actions]

Coverage of the acceptance run against the meshStack backend, on 86398f6d173538f547903defc577b5caf9609fbb.

Scope	Coverage
Unit tests	79.4%
Acceptance tests	53.0%
Combined	83.5%

Uncovered functions

client/api_key.go:55: meshApiKeyClient.Create 0.0%
client/api_key.go:59: meshApiKeyClient.Read 0.0%
client/api_key.go:63: meshApiKeyClient.Update 0.0%
client/api_key.go:71: meshApiKeyClient.Delete 0.0%
client/api_key_permissions.go:20: ApiKeyPermissions.AllCodes 0.0%
client/api_key_permissions.go:33: ApiKeyPermissions.WorkspaceCodes 0.0%
client/api_key_permissions.go:295: AllApiKeyPermissions 0.0%
client/api_key_permissions.go:299: WorkspacePermissionCodes 0.0%
client/building_block_definition.go:71: MeshBuildingBlockDefinitionApprovalPolicies.NothingRequiresApproval 0.0%
client/building_block_definition.go:82: DisabledSchedule 0.0%
client/building_block_definition.go:89: MeshBuildingBlockDefinitionSchedule.IsDisabled 0.0%
client/building_block_definition.go:93: MeshBuildingBlockDefinitionSpec.HasNeutralPolicies 0.0%
client/building_block_definition.go:97: MeshBuildingBlockDefinitionSpec.WithNeutralPolicies 0.0%
client/building_block_definition.go:166: meshBuildingBlockDefinitionClient.List 0.0%
client/building_block_definition.go:173: meshBuildingBlockDefinitionClient.Read 0.0%
client/building_block_definition.go:177: meshBuildingBlockDefinitionClient.Create 0.0%
client/building_block_definition.go:181: meshBuildingBlockDefinitionClient.Update 0.0%
client/building_block_definition.go:185: meshBuildingBlockDefinitionClient.Delete 0.0%
client/building_block_definition_version.go:100: MeshBuildingBlockType.TagInputTargets 0.0%
client/building_block_definition_version.go:245: meshBuildingBlockDefinitionVersionClient.Create 0.0%
client/building_block_definition_version.go:254: meshBuildingBlockDefinitionVersionClient.Update 0.0%
client/building_block_definition_version_implementation.go:80: MeshBuildingBlockDefinitionImplementation.InferType 0.0%
client/building_block_definition_version_implementation.go:94: MeshBuildingBlockDefinitionImplementation.MarshalJSON 0.0%
client/building_block_definition_version_implementation.go:107: *MeshBuildingBlockDefinitionImplementation.UnmarshalJSON 0.0%
client/building_block_runner.go:82: meshBuildingBlockRunnerClient.Create 0.0%
... and 123 more

covdata func names a method without its receiver, so an entry can belong to an implementation nothing selects rather than to a function the tests never reached. Open the file and line before reading one as a coverage gap.