Add keycloak plugin 1.4

Author: GitHub Actions

artifacts/rhdh-plugins-reference/keycloak/keycloak-plugin-admin.adoc

@@ -17,11 +17,11 @@ The Keycloak plugin is pre-loaded in {product-short} with basic configuration pr
 
 [source,yaml]
 ----
-global: 
-  dynamic: 
-    includes: 
+global:
+  dynamic:
+    includes:
       - dynamic-plugins.default.yaml
-    plugins: 
+    plugins:
       - package: ./dynamic-plugins/dist/janus-idp-backstage-plugin-keycloak-backend-dynamic
         disabled: false
 ----

artifacts/rhdh-plugins-reference/keycloak/keycloak-plugin-readme.adoc

@@ -1,5 +1,5 @@
 [id="rhdh-keycloak_{context}"]
-= Installation and configuration of Keycloak 
+= Installation and configuration of Keycloak
 
 The Keycloak backend plugin, which integrates Keycloak into {product-short}, has the following capabilities:
 
@@ -14,11 +14,11 @@ The Keycloak plugin is pre-loaded in {product-short} with basic configuration pr
 
 [source,yaml]
 ----
-global: 
-  dynamic: 
-    includes: 
+global:
+  dynamic:
+    includes:
       - dynamic-plugins.default.yaml
-    plugins: 
+    plugins:
       - package: ./dynamic-plugins/dist/janus-idp-backstage-plugin-keycloak-backend-dynamic
         disabled: false
 ----

artifacts/rhdh-plugins-reference/keycloak/keycloak-plugin-user.adoc

@@ -1,5 +1,5 @@
 [id="rhdh-keycloak_{context}"]
-= Using Keycloak 
+= Using Keycloak
 
 The Keycloak backend plugin, which integrates Keycloak into {product-short}, has the following capabilities: