ConnectionUtils should be configurable wrt to read and connect timeout

While using the InstanceProfileCredentialsProvider to retrieve the token (using IAM roles) to access SQS we see frequently read timeout exceptions while initializing our service (`Unable to load credentials from service endpoint`).

## Describe the issue
The InstanceProfileCredentialsProvider uses internally the ConnectionUtils class to make its http request to the metadata service. From time to time this requests fails for a couple of minutes and since the read timeout is hardcoded to 1s, this fails continuously until it eventually succeeds. I guess having the option to increase the read timeout would be beneficial in this case. There is a TODO already in this class to refactor.

## Steps to Reproduce
Intermittent while trying to connect to SQS via IAM role.

## Current Behavior
```
Caused by: java.util.concurrent.ExecutionException: software.amazon.awssdk.core.exception.SdkClientException: Unable to load credentials from service endpoint.
at java.util.concurrent.CompletableFuture.reportGet(Unknown Source)
at java.util.concurrent.CompletableFuture.get(Unknown Source)
at xxxxx.JobQueue.getQueueUrl(JobQueue.java:xxx)
... 39 common frames omitted
Caused by: s.a.a.core.exception.SdkClientException: Unable to load credentials from service endpoint.
at s.a.a.c.e.SdkClientException$BuilderImpl.build(SdkClientException.java:98)
at s.a.a.a.c.HttpCredentialsProvider.refreshCredentials(HttpCredentialsProvider.java:110)
at s.a.awssdk.utils.cache.CachedSupplier.refreshCache(CachedSupplier.java:132)
at s.a.awssdk.utils.cache.CachedSupplier.get(CachedSupplier.java:89)
at java.util.Optional.map(Unknown Source)
at s.a.a.a.c.HttpCredentialsProvider.resolveCredentials(HttpCredentialsProvider.java:146)
at s.a.a.a.i.AwsExecutionContextBuilder.resolveCredentials(AwsExecutionContextBuilder.java:165)
at s.a.a.a.i.AwsExecutionContextBuilder.invokeInterceptorsAndCreateExecutionContext(AwsExecutionContextBuilder.java:102)
at s.a.a.a.c.handler.AwsAsyncClientHandler.invokeInterceptorsAndCreateExecutionContext(AwsAsyncClientHandler.java:65)
at s.a.a.c.i.handler.BaseAsyncClientHandler.lambda$execute$1(BaseAsyncClientHandler.java:77)
at s.a.a.c.i.handler.BaseAsyncClientHandler.measureApiCallSuccess(BaseAsyncClientHandler.java:282)
at s.a.a.c.i.handler.BaseAsyncClientHandler.execute(BaseAsyncClientHandler.java:75)
at s.a.a.a.c.handler.AwsAsyncClientHandler.execute(AwsAsyncClientHandler.java:52)
at s.a.a.services.sqs.DefaultSqsAsyncClient.getQueueUrl(DefaultSqsAsyncClient.java:925)
... 40 common frames omitted
Caused by: java.net.SocketTimeoutException: Read timed out
at java.net.SocketInputStream.socketRead0(Unknown Source)
at java.net.SocketInputStream.socketRead(Unknown Source)
at java.net.SocketInputStream.read(Unknown Source)
at java.net.SocketInputStream.read(Unknown Source)
at java.io.BufferedInputStream.fill(Unknown Source)
at java.io.BufferedInputStream.read1(Unknown Source)
at java.io.BufferedInputStream.read(Unknown Source)
at sun.net.www.http.HttpClient.parseHTTPHeader(Unknown Source)
at sun.net.www.http.HttpClient.parseHTTP(Unknown Source)
at s.n.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
at s.n.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source:33)
at java.net.HttpURLConnection.getResponseCode(Unknown Source:33)
at s.a.a.regions.util.HttpResourcesUtils.readResource(HttpResourcesUtils.java:116)
at s.a.a.regions.util.HttpResourcesUtils.readResource(HttpResourcesUtils.java:91)
at s.a.a.a.c.InstanceProfileCredentialsProvider$InstanceProviderCredentialsEndpointProvider.endpoint(InstanceProfileCredentialsProvider.java:150)
at s.a.a.regions.util.HttpResourcesUtils.readResource(HttpResourcesUtils.java:112)
at s.a.a.regions.util.HttpResourcesUtils.readResource(HttpResourcesUtils.java:91)
at s.a.a.a.c.HttpCredentialsProvider.refreshCredentials(HttpCredentialsProvider.java:79)
... 52 common frames omitted
```

## Your Environment
* AWS Java SDK version used: 2.17.34
* JDK version used: Java 11
* Operating System and version: Linux

Inizia leggendo il TODO di ConnectionUtils e segui il modo in cui InstanceProfileCredentialsProvider e HttpResourcesUtils effettuano richieste al servizio di metadati. Determina dove sono attualmente fissati i timeout di lettura e di connessione, quindi verifica che i chiamanti possano configurarli senza modificare il comportamento esistente di caricamento delle credenziali.

Scritto dal modello di indicizzazione a partire dal testo della issue.