[7.15](backport #1928) Update main branch (#1933)

* Update main branch (#1928)

(cherry picked from commit 304c97f)

# Conflicts:
#	.ci/build-docker-images.groovy
#	.ci/e2eKibana.groovy
#	.ci/jobs/build-docker-images.yml
#	.ci/jobs/e2e-testing-fleet-daily-mbp.yml
#	.ci/jobs/e2e-testing-helm-daily-mbp.yml
#	.ci/jobs/e2e-testing-k8s-autodiscovery-daily-mbp.yml
#	.ci/jobs/e2e-testing-mbp.yml
#	.ci/jobs/fleet-server-e2e-tests.yml
#	.ci/jobs/kibana-e2e-tests.yml
#	.mergify.yml

* use main version for mergify and jjbb

* chore: remove pipelines that are not triggered in maintenance branches

Co-authored-by: Victor Martinez <[email protected]>
Co-authored-by: Manuel de la Peña <[email protected]>

.ci/Jenkinsfile

@@ -37,7 +37,7 @@ pipeline {
     issueCommentTrigger("${obltGitHubComments()}")
   }
   parameters {
-    booleanParam(name: 'Run_As_Master_Branch', defaultValue: false, description: 'Allow to run any steps on a PR, some steps normally only run on master branch.')
+    booleanParam(name: 'Run_As_Main_Branch', defaultValue: false, description: 'Allow to run any steps on a PR, some steps normally only run on main branch.')
     booleanParam(name: "SKIP_SCENARIOS", defaultValue: true, description: "If it's needed to skip those scenarios marked as @skip. Default true")
     booleanParam(name: "NIGHTLY_SCENARIOS", defaultValue: false, description: "If it's needed to include the scenarios marked as @nightly in the test execution. Default false")
     string(name: 'runTestsSuites', defaultValue: '', description: 'A comma-separated list of test suites to run (default: empty to run all test suites)')
@@ -460,10 +460,10 @@ def generateFunctionalTestStep(Map args = [:]){
 
   // TODO: Is this still relevant?
   if (isPR() || isUpstreamTrigger(filter: 'PR-')) {
-    // when the "Run_As_Master_Branch" param is disabled, we will honour the PR filters, which
+    // when the "Run_As_Main_Branch" param is disabled, we will honour the PR filters, which
     // basically exclude some less frequent platforms or operative systems. If the user enabled
     // this param, the pipeline will remove the filters from the test runner.
-    if (!params.Run_As_Master_Branch) {
+    if (!params.Run_As_Main_Branch) {
       tags += pullRequestFilter
     }
   }