Add release notes for sonar-scala 9.0.0 (#193)

Author: mwz

docs/about/compatibility-with-sonarqube.mdx

@@ -4,8 +4,8 @@ title: Compatibility with SonarQube
 
 We do our best to provide sonar-scala for both the latest SonarQube and the
 current LTS version. We currently support
-[SonarQube 8.9 LTS](https://www.sonarqube.org/sonarqube-8-9-lts),
-[SonarQube 8.7](https://www.sonarqube.org/sonarqube-8-7) and
+[SonarQube 9.4](https://www.sonarqube.org/sonarqube-9-4),
+[SonarQube 8.9 LTS](https://www.sonarqube.org/sonarqube-8-9-lts) and
 [SonarQube 7.9 LTS](https://www.sonarqube.org/sonarqube-7-9-lts). Releases for
 [SonarQube 6.7 LTS](https://www.sonarqube.org/sonarqube-6-7-lts) can be also
 found in the table below, but this version of SonarQube is no longer actively
@@ -19,7 +19,7 @@ We also support Scala 2.11, 2.12 and 2.13.
 
 | SonarQube | sonar-scala                                                                                                  |
 | --------- | ------------------------------------------------------------------------------------------------------------ |
-| 8.7       | [{{version}}](https://github.com/sonar-scala/sonar-scala/releases/tag/v{{version}})                          |
+| 9.4       | [{{version}}](https://github.com/sonar-scala/sonar-scala/releases/tag/v{{version}})                          |
 | 8.9.x LTS | [{{ltsVersion}}](https://github.com/sonar-scala/sonar-scala/releases/tag/v{{ltsVersion}})                    |
 | 7.9.x LTS | [{{lts79Version}}](https://github.com/sonar-scala/sonar-scala/releases/tag/v{{lts79Version}})                |
 | 6.7.x LTS | 6.x (_latest [{{lts67Version}}](https://github.com/sonar-scala/sonar-scala/releases/tag/v{{lts67Version}})_) |
@@ -28,6 +28,7 @@ We also support Scala 2.11, 2.12 and 2.13.
 
 | SonarQube | sonar-scala                                                             |
 | --------- | ----------------------------------------------------------------------- |
+| 8.9       | [8.9](https://github.com/sonar-scala/sonar-scala/releases/tag/v8.7.0)   |
 | 8.7       | [8.7](https://github.com/sonar-scala/sonar-scala/releases/tag/v8.7.0)   |
 | 8.5       | [8.6](https://github.com/sonar-scala/sonar-scala/releases/tag/v8.6.0)   |
 | 8.4       | [8.5](https://github.com/sonar-scala/sonar-scala/releases/tag/v8.5.0)   |

docs/changelog.mdx

@@ -3,6 +3,11 @@ id: changelog
 title: Changelog
 ---
 
+## [9.0.0](https://github.com/sonar-scala/sonar-scala/releases/tag/v9.0.9) - 10.05.2022
+
+Added support for SonarQube 9.4. ([@Fristi](https://github.com/Fristi) -
+[#831](https://github.com/sonar-scala/sonar-scala/pull/831))
+
 ## [8.9.0](https://github.com/sonar-scala/sonar-scala/releases/tag/v8.9.0) - 16.12.2021
 
 Added support for SonarQube 8.9 LTS. ([@mwz](https://github.com/mwz) -

vars.json

@@ -1,5 +1,5 @@
 {
-  "version": "8.7.0",
+  "version": "9.0.0",
   "ltsVersion": "8.9.0",
   "lts79Version": "7.9.0",
   "lts67Version": "6.8.0",