type fixes for React 18

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

.changeset/healthy-shirts-fold.md

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+---
+'@backstage/plugin-catalog': patch
+'@backstage/plugin-techdocs': patch
+---
+
+The `spec.lifecycle' field in entities will now always be rendered as a string.

.changeset/popular-bikes-do.md

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+---
+'@backstage/plugin-code-coverage': patch
+---
+
+The warning for missing code coverage will now render the entity as a reference.

.changeset/pretty-swans-worry.md

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+---
+'@backstage/core-components': patch
+---
+
+Fixed the type declaration of `DependencyGraphProps`, the `defs` prop now expects `JSX.Element`s.

.changeset/sweet-buckets-fry.md

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+---
+'@backstage/plugin-catalog-react': patch
+---
+
+The `spec.type` field in entities will now always be rendered as a string.

.changeset/thick-dolphins-boil.md

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+---
+'@backstage/plugin-catalog-import': patch
+---
+
+The `app.title` configuration is now properly required to be a string.

.changeset/wet-cows-brake.md

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+---
+'@backstage/plugin-search-react': patch
+---
+
+The filter options passed to `SearchResultGroupLayout` are now always explicitly rendered as strings by default.

.changeset/wild-geese-occur.md

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+---
+'@backstage/plugin-search': patch
+---
+
+Minor internal code cleanup.