Merge pull request #13559 from backstage/rugvip/jest29

cli: switch to Jest 29

.changeset/lazy-beds-pull.md

@@ -0,0 +1,5 @@
+---
+'@backstage/cli': patch
+---
+
+Updated fallback versions of dependencies in all templates.

.changeset/rich-carrots-reflect.md

@@ -0,0 +1,5 @@
+---
+'@backstage/cli': patch
+---
+
+Switched the Jest transform for YAML files to use a custom one available at `@backstage/cli/config/jestYamlTransform.js`.

.changeset/sweet-insects-camp.md

@@ -0,0 +1,11 @@
+---
+'@backstage/cli': minor
+---
+
+**BREAKING**: Bumped `jest`, `jest-runtime`, and `jest-environment-jsdom` to v29. This is up from v27, so check out both the [v28](https://jestjs.io/docs/28.x/upgrading-to-jest28) and [v29](https://jestjs.io/docs/upgrading-to-jest29) (later [here](https://jestjs.io/docs/29.x/upgrading-to-jest29)) migration guides.
+
+Particular changes that where encountered in the main Backstage repo are:
+
+- The updated snapshot format.
+- `jest.useFakeTimers('legacy')` is now `jest.useFakeTimers({ legacyFakeTimers: true })`.
+- Error objects collected by `withLogCollector` from `@backstage/test-utils` are now objects with a `detail` property rather than a string.