Bump the development-dependencies group with 2 updates

Bumps the development-dependencies group with 2 updates: [io.micrometer:micrometer-docs-generator](https://github.com/micrometer-metrics/micrometer-docs-generator) and [io.spring.develocity.conventions](https://github.com/spring-io/develocity-conventions).


Updates `io.micrometer:micrometer-docs-generator` from 1.0.3 to 1.0.4
- [Release notes](https://github.com/micrometer-metrics/micrometer-docs-generator/releases)
- [Commits](micrometer-metrics/micrometer-docs-generator@v1.0.3...v1.0.4)

Updates `io.spring.develocity.conventions` from 0.0.20 to 0.0.21
- [Release notes](https://github.com/spring-io/develocity-conventions/releases)
- [Commits](spring-io/develocity-conventions@v0.0.20...v0.0.21)

---
updated-dependencies:
- dependency-name: io.micrometer:micrometer-docs-generator
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: development-dependencies
- dependency-name: io.spring.develocity.conventions
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: development-dependencies
...

Signed-off-by: dependabot[bot] <[email protected]>

build.gradle

@@ -61,7 +61,7 @@ ext {
 	log4jVersion = '2.23.1'
 	logbackVersion = '1.5.8'
 	lz4Version = '1.8.0'
-	micrometerDocsVersion = '1.0.3'
+	micrometerDocsVersion = '1.0.4'
 	micrometerVersion = '1.14.0-SNAPSHOT'
 	micrometerTracingVersion = '1.4.0-SNAPSHOT'
 	mockitoVersion = '5.12.0'

settings.gradle

@@ -7,7 +7,7 @@ pluginManagement {
 
 plugins {
 	id 'com.gradle.develocity' version '3.17.6'
-	id 'io.spring.develocity.conventions' version '0.0.20'
+	id 'io.spring.develocity.conventions' version '0.0.21'
 }
 
 rootProject.name = 'spring-amqp-dist'