[ACS-9181] Bump Keycloak to 26.1.0 on ACS 7.3.2 #3784

Job	Run time
CMIS TAS tests - Elastic Search (CMIS API)	24m 9s
REST API TAS tests with AIMS	30m 10s
${{ matrix.testSuite }} TAS tests	0s
CMIS - BROWSER binding TAS tests with AIMS	33m 26s
Source Clear Scan (SCA)	0s
CMIS TAS tests - Open Search (CMIS API)	22m 46s
Sync Service TAS tests	23m 8s
CMIS - ATOM binding TAS tests with AIMS	33m 51s
Elasticsearch \| TAS tests (Search API)	27m 54s
Elasticsearch Upgrade TAS tests	26m 37s
Opensearch \| TAS tests (Search API)	43m 1s
Opensearch Upgrade TAS tests	27m 0s
Elasticsearch Basic Auth \| TAS tests (Search API)	22m 22s
Opensearch Basic Auth \| TAS tests (Search API)	23m 14s
All AMPs tests	22m 56s
Distribution Zip content tests	27m 5s
Single Pipeline image tests	0s
	6h 27m 39s

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