[bitnami/sonarqube] chart install instructions had a misspelling in the chart (#9974)

### Description of the change

The README.md contained a typo, that prevents install.

Corrected misspelling of the bitnami/sonarqube chart name in the `helm install` command.

Was:
```
$ helm install my-release bitnami/sonarqubes
```

should be
```
$ helm install my-release bitnami/sonarqube
```

### Benefits

More people will be able to install sonarqube with less frustration.

### Possible drawbacks

None that I can think of, unless your attempting to limit the number of installs with this typo.

### Applicable issues

https://github.com/bitnami/charts/issues/9972

### Additional information

Running the type command resulted in:
```
Error: failed to download "bitnami/sonarqubes" (hint: running helm repo update may help)
```

Debugged using:
```
helm install --dry-run --debug my-release bitnami/sonarqubes
```

That produced a little more useful information:
```
Error: chart "sonarqubes" matching  not found in bitnami index. (try 'helm repo update'): no chart name found
helm.go:81: [debug] no chart name found
helm.sh/helm/v3/pkg/repo.init
        /home/circleci/helm.sh/helm/pkg/repo/index.go:51
runtime.doInit
        /usr/local/go/src/runtime/proc.go:5652
runtime.doInit
        /usr/local/go/src/runtime/proc.go:5647
runtime.doInit
        /usr/local/go/src/runtime/proc.go:5647
runtime.doInit
        /usr/local/go/src/runtime/proc.go:5647
runtime.main
        /usr/local/go/src/runtime/proc.go:191
runtime.goexit
        /usr/local/go/src/runtime/asm_amd64.s:1374
chart "sonarqubes" matching  not found in bitnami index. (try 'helm repo update')
helm.sh/helm/v3/pkg/downloader.(*ChartDownloader).ResolveChartVersion
        /home/circleci/helm.sh/helm/pkg/downloader/chart_downloader.go:240
helm.sh/helm/v3/pkg/downloader.(*ChartDownloader).DownloadTo
        /home/circleci/helm.sh/helm/pkg/downloader/chart_downloader.go:89
helm.sh/helm/v3/pkg/action.(*ChartPathOptions).LocateChart
        /home/circleci/helm.sh/helm/pkg/action/install.go:675
main.runInstall
        /home/circleci/helm.sh/helm/cmd/helm/install.go:185
main.newInstallCmd.func2
        /home/circleci/helm.sh/helm/cmd/helm/install.go:120
github.com/spf13/cobra.(*Command).execute
        /go/pkg/mod/github.com/spf13/cobra@v1.1.1/command.go:850
github.com/spf13/cobra.(*Command).ExecuteC
        /go/pkg/mod/github.com/spf13/cobra@v1.1.1/command.go:958
github.com/spf13/cobra.(*Command).Execute
        /go/pkg/mod/github.com/spf13/cobra@v1.1.1/command.go:895
main.main
        /home/circleci/helm.sh/helm/cmd/helm/helm.go:80
runtime.main
        /usr/local/go/src/runtime/proc.go:204
runtime.goexit
        /usr/local/go/src/runtime/asm_amd64.s:1374
```

### Checklistr

- [X] Title of the pull request follows this pattern [bitnami/<name_of_the_chart>] Descriptive title
- [X] All commits signed off and in agreement of [Developer Certificate of Origin (DCO)](https://github.com/bitnami/charts/blob/master/CONTRIBUTING.md#sign-your-work)

Error: failed to download "bitnami/sonarqubes" (hint: running `helm repo update` may help)

Co-authored-by: jasonmedici <jbuchanan@mediciland.com>

bitnami/sonarqube/README.md

@@ -33,7 +33,7 @@ Bitnami charts can be used with [Kubeapps](https://kubeapps.com/) for deployment
 To install the chart with the release name `my-release`:
 
 ```console
-$ helm install my-release bitnami/sonarqubes
+$ helm install my-release bitnami/sonarqube
 ```
 
 The command deploys SonarQube on the Kubernetes cluster in the default configuration. The [Parameters](#parameters) section lists the parameters that can be configured during installation.
@@ -414,4 +414,4 @@ Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
-limitations under the License.
+limitations under the License.