✅ Add integration test for controller restart.

[jamesdobson]

No description provided.

[github-actions]

⬇️ Go test coverage decreased from 71.2% to 70.8% compared to fe0e695 (1 ignored files)

⚠️ 2 of 12 packages have zero coverage.

• kumquat
• kumquat/cmd

Updated Package Coverages:

# Package Name                |  Prior |    New
- kumquat/internal/controller |  72.6% |  71.5%

View coverage for all packages

# Package Name                | Coverage
- kumquat                     |     0.0%
+ kumquat/api/v1beta1         |   100.0%
- kumquat/cmd                 |     0.0%
+ kumquat/internal/controller |    71.5%
+ kumquat/renderer            |   100.0%
+ kumquat/renderer/cue        |    88.4%
+ kumquat/renderer/gotemplate |    95.8%
+ kumquat/renderer/jsonnet    |    87.9%
+ kumquat/repository          |    91.8%
+ kumquat/store               |    75.0%
+ kumquat/template            |    93.9%
+ kumquat/test/utils          |    10.8%