Configure test container Solr with several startup attempt

[apupier]

to stabilize build on CI

Description

it shoudl avoid this kind of errors:

[ERROR] org.apache.camel.component.solr.integration.SolrCloudProducerIT -- Time elapsed: 93.50 s <<< ERROR!
org.testcontainers.containers.ContainerLaunchException: Container startup failed for image solr:9.6.1
	at org.testcontainers.containers.GenericContainer.doStart(GenericContainer.java:359)
	at org.testcontainers.containers.GenericContainer.start(GenericContainer.java:330)
	at org.apache.camel.test.infra.solr.services.SolrLocalContainerService.initialize(SolrLocalContainerService.java:41)
	at org.apache.camel.test.infra.common.services.TestServiceUtil.tryInitialize(TestServiceUtil.java:43)
	at org.apache.camel.test.infra.solr.services.SolrService.beforeAll(SolrService.java:36)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
Caused by: org.rnorth.ducttape.RetryCountExceededException: Retry limit hit with exception
	at org.rnorth.ducttape.unreliables.Unreliables.retryUntilSuccess(Unreliables.java:88)
	at org.testcontainers.containers.GenericContainer.doStart(GenericContainer.java:344)
	... 5 more
Caused by: org.testcontainers.containers.ContainerLaunchException: Could not create/start container
	at org.testcontainers.containers.GenericContainer.tryStart(GenericContainer.java:563)
	at org.testcontainers.containers.GenericContainer.lambda$doStart$0(GenericContainer.java:354)
	at org.rnorth.ducttape.unreliables.Unreliables.retryUntilSuccess(Unreliables.java:81)
	... 6 more
Caused by: java.lang.IllegalStateException: Wait strategy failed. Container exited with code 1
	at org.testcontainers.containers.GenericContainer.tryStart(GenericContainer.java:533)
	... 8 more
Caused by: org.testcontainers.containers.ContainerLaunchException: Timed out waiting for log output matching '.*Server.*Started.*'
	at org.testcontainers.containers.wait.strategy.LogMessageWaitStrategy.waitUntilReady(LogMessageWaitStrategy.java:47)
	at org.testcontainers.containers.wait.strategy.AbstractWaitStrategy.waitUntilReady(AbstractWaitStrategy.java:52)
	at org.testcontainers.containers.GenericContainer.waitUntilContainerStarted(GenericContainer.java:909)
	at org.testcontainers.containers.GenericContainer.tryStart(GenericContainer.java:500)
	... 8 more

Target

• I checked that the commit is targeting the correct branch (note that Camel 3 uses camel-3.x, whereas Camel 4 uses the main branch)

Tracking

• If this is a large change, bug fix, or code improvement, I checked there is a JIRA issue filed for the change (usually before you start working on it).

Apache Camel coding standards and style

• I checked that each commit in the pull request has a meaningful subject line and body.

• I have run mvn clean install -DskipTests locally from root folder and I have committed all auto-generated changes.

[apupier]

/component-test solr

Result ✅ The tests passed successfully

[github-actions]

🤖 The Apache Camel test robot will run the tests for you 👍

[apupier]

unrelated uncommited changes to this PR:

diff --git a/components/camel-spring-xml/src/test/java/org/apache/camel/spring/processor/SpringStreamCachingStrategyTest.java b/components/camel-spring-xml/src/test/java/org/apache/camel/spring/processor/SpringStreamCachingStrategyTest.java
index 40ba7eb6..44534e9c 100644
--- a/components/camel-spring-xml/src/test/java/org/apache/camel/spring/processor/SpringStreamCachingStrategyTest.java
+++ b/components/camel-spring-xml/src/test/java/org/apache/camel/spring/processor/SpringStreamCachingStrategyTest.java
@@ -40,7 +40,8 @@ public class SpringStreamCachingStrategyTest extends SpringTestSupport {
         assertTrue(context.getStreamCachingStrategy().isEnabled());
         assertEquals(normalizePath("target/cachedir"),
                 normalizePath(context.getStreamCachingStrategy().getSpoolDirectory().toString()));
-        assertEquals(Integer.valueOf(IOHelper.DEFAULT_BUFFER_SIZE).intValue(), context.getStreamCachingStrategy().getBufferSize());
+        assertEquals(Integer.valueOf(IOHelper.DEFAULT_BUFFER_SIZE).intValue(),
+                context.getStreamCachingStrategy().getBufferSize());
         assertEquals(Long.valueOf(8192).longValue(), context.getStreamCachingStrategy().getSpoolThreshold());
         assertEquals("java.io.ByteArrayInputStream",
                 context.getStreamCachingStrategy().getAllowClasses().iterator().next().getName());

will be fixed with #15275