Fix failing docker packaging tests due to too long commandline (elastic#125053)

* Increate COLUMN for detecting running elasticsearch instance
* Unmute DockerTest test

(cherry picked from commit 38f2439)

# Conflicts:
#	muted-tests.yml
#	qa/packaging/src/test/java/org/elasticsearch/packaging/util/docker/Docker.java

Author: breskeby

muted-tests.yml

@@ -398,4 +398,4 @@ tests:
 #    issue: "https://github.com/elastic/elasticsearch/..."
 #  - class: "org.elasticsearch.xpack.esql.**"
 #    method: "test {union_types.MultiIndexIpStringStatsInline *}"
-#    issue: "https://github.com/elastic/elasticsearch/..."
+#    issue: "https://github.com/elastic/elasticsearch/..."

qa/packaging/src/test/java/org/elasticsearch/packaging/util/docker/Docker.java

@@ -187,7 +187,7 @@ public static void waitForElasticsearchToStart() {
                 Thread.sleep(STARTUP_SLEEP_INTERVAL_MILLISECONDS);
 
                 // Set COLUMNS so that `ps` doesn't truncate its output
-                psOutput = dockerShell.run("bash -c 'COLUMNS=2000 ps ax'").stdout();
+                psOutput = dockerShell.run("bash -c 'COLUMNS=4000 ps ax'").stdout();
 
                 if (psOutput.contains("org.elasticsearch.bootstrap.Elasticsearch")) {
                     isElasticsearchRunning = true;