Version 450 release, Kotlin marked as stable (#441)

* Version update

* Docs regen

* version changed

* Fixes readme typo

Author: spacether

README.md

@@ -17,7 +17,7 @@ Currently, the following languages/frameworks are supported:
 
 | Feature                                                                                                              | [Python](docs/generators/python.md) | [Java](docs/generators/java.md) | [Kotlin](docs/generators/kotlin.md) |
 |----------------------------------------------------------------------------------------------------------------------|-------------------------------------|---------------------------------|-------------------------------------|
-| Generator status                                                                                                     | stable                              | stable                          | experimental                        |
+| Generator status                                                                                                     | stable                              | stable                          | stable                                   |
 | Openapi v3.0.0-3.1.0 ingestion                                                                                       | X                                   | X                               | X                                   |
 | Json Schema 2020-12 Support (components/schemas)                                                                     | X                                   | X                               | X                                   |
 | Component schema classes + documentation produced                                                                    | X                                   | X                               | X                                   |
@@ -168,7 +168,7 @@ Once built, `run-in-docker.sh` will act as an executable for openapi-json-schema
 ```sh
 ./bin/run-in-docker.sh help # Executes 'help' command for openapi-json-schema-generator-cli
 ./bin/run-in-docker.sh list # Executes 'list' command for openapi-json-schema-generator-cli
-./bin/run-in-docker.sh /gen/bin/python-petstore.sh  # Builds the Go client
+./bin/run-in-docker.sh /gen/bin/python-petstore.sh  # Builds the Python client
 ./bin/run-in-docker.sh generate -i src/test/resources/3_0/petstore.yaml \
     -g go -o /gen/out/python-petstore -p packageName=petstore_api # generates python client, outputs locally to ./out/python-petstore
 ```

docs/generators/kotlin.md

@@ -7,7 +7,7 @@ title: Documentation for the kotlin generator
 | Property | Value | Notes |
 | -------- | ----- | ----- |
 | generator name | kotlin | pass this to the generate command after -g |
-| generator stability | EXPERIMENTAL | |
+| generator stability | STABLE | |
 | generator type | CLIENT | |
 | generator language | Kotlin | |
 | generator language version | 1.9.23 | |

pom.xml

@@ -446,7 +446,7 @@
     </dependencies>
     <properties>
         <!-- RELEASE_VERSION -->
-        <revision>4.4.0</revision>
+        <revision>4.5.0</revision>
         <!-- /RELEASE_VERSION -->
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <java.version>11</java.version>

src/main/java/org/openapijsonschematools/codegen/generators/KotlinClientGenerator.java

@@ -318,7 +318,7 @@ public KotlinClientGenerator(GeneratorSettings generatorSettings, WorkflowSettin
         .language(GeneratorLanguage.KOTLIN)
         .languageVersion("1.9.23")
         .type(GeneratorType.CLIENT)
-        .stability(Stability.EXPERIMENTAL)
+        .stability(Stability.STABLE)
         .featureSet(featureSet)
         .generationMessage(String.format(Locale.ROOT, "OpenAPI JSON Schema Generator: %s (%s)", "kotlin", GeneratorType.CLIENT))
         .helpMsg(String.join(