### Elasticsearch Version

7.16.2, master

### Installed Plugins

no

### Java Version

_bundled_

### OS Version

Linux iZbp1dn0ktfed9mjoyuiajZ 5.10.84-10.2.al8.x86_64 #1 SMP Thu Feb 10 15:03:09 CST 2022 x86_64 x86_64 x86_64 GNU/Linux

### Problem Description

When put repository using PutRespository API for an existing repository, NullPointerException was thrown, short stack shows as below
```
1> java.lang.Exception: java.lang.NullPointerException: Cannot invoke "org.elasticsearch.repositories.Repository.getMetadata()" because "repository" is null
  1>   at org.elasticsearch.cluster.service.MasterService.innerExecuteTasks(MasterService.java:916) ~[main/:?]
  1>   at org.elasticsearch.cluster.service.MasterService.executeTasks(MasterService.java:871) ~[main/:?]
  1>   at org.elasticsearch.cluster.service.MasterService.runTasks(MasterService.java:253) [main/:?]
  1>   at org.elasticsearch.cluster.service.MasterService$Batcher.run(MasterService.java:153) [main/:?]
  1>   at org.elasticsearch.cluster.service.TaskBatcher.runIfNotProcessed(TaskBatcher.java:114) [main/:?]
  1>   at org.elasticsearch.cluster.service.TaskBatcher$BatchedTask.run(TaskBatcher.java:170) [main/:?]
  1>   at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingRunnable.run(ThreadContext.java:714) [main/:?]
  1>   at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.runAndClean(PrioritizedEsThreadPoolExecutor.java:260) [main/:?]
  1>   at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.run(PrioritizedEsThreadPoolExecutor.java:223) [main/:?]
  1>   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) [?:?]
  1>   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) [?:?]
  1>   at java.lang.Thread.run(Thread.java:833) [?:?]
```

### Steps to Reproduce

I've created an IT to reproduce this issue in [#85551](https://github.com/elastic/elasticsearch/pull/85551), steps can be described as following:
- put repository using `RestPutRepository` API and make sure non-master node failed to create repository.
- restart master let one of the previous non-master node become master
- put the same repository using the `RestPutRepository` API.

### Logs (if relevant)

_No response_
server/src/main/java/org/elasticsearch/repositories/RepositoriesService.java
Map<String, Repository> builder = new HashMap<>();
            
            for (RepositoryMetadata repositoryMetadata : newMetadata.repositories()) {
                Repository repository = survivors.get(repositoryMetadata.name());
                if (repository != null) {
                    
                    if (canUpdateInPlace(repositoryMetadata, repository) == false) {
                        
                        logger.debug("updating repository [{}]", repositoryMetadata.name());
                        closeRepository(repository);
                        archiveRepositoryStats(repository, state.version());
                        repository = null;
                        try {
                            repository = createRepository(
                                repositoryMetadata,
                                typesRegistry,
                                RepositoriesService::createUnknownTypeRepository
                            );
                        } catch (RepositoryException ex) {
                            
                            
                            logger.warn(() -> new ParameterizedMessage("failed to change repository [{}]", repositoryMetadata.name()), ex);
                        }
                    }
                } else {
                    try {
                        repository = createRepository(repositoryMetadata, typesRegistry, RepositoriesService::createUnknownTypeRepository);
                    } catch (RepositoryException ex) {
                        logger.warn(() -> new ParameterizedMessage("failed to create repository [{}]", repositoryMetadata.name()), ex);
                    }