refactor: stop using backend-tasks in packages and plugins

Signed-off-by: Camila Belo <camilaibs@gmail.com>

docs/integrations/gitlab/discovery.md

@@ -154,7 +154,7 @@ catalog:
         entityFilename: catalog-info.yaml # Optional. Defaults to `catalog-info.yaml`
         projectPattern: '[\s\S]*' # Optional. Filters found projects based on provided patter. Defaults to `[\s\S]*`, which means to not filter anything
         excludeRepos: [] # Optional. A list of project paths that should be excluded from discovery, e.g. group/subgroup/repo. Should not start or end with a slash.
-        schedule: # Same options as in TaskScheduleDefinition. Optional for the Legacy Backend System
+        schedule: # Same options as in SchedulerServiceTaskScheduleDefinition. Optional for the Legacy Backend System
           # supports cron, ISO duration, "human duration" as used in code
           frequency: { minutes: 30 }
           # supports ISO duration, "human duration" as used in code

docs/integrations/gitlab/org.md

@@ -173,7 +173,7 @@ catalog:
         group: org/teams # Required for gitlab.com when `orgEnabled: true`. Optional for self managed. Must not end with slash. Accepts only groups under the provided path (which will be stripped)
         allowInherited: true # Allow groups to be ingested even if there are no direct members.
         groupPattern: '[\s\S]*' # Optional. Filters found groups based on provided pattern. Defaults to `[\s\S]*`, which means to not filter anything
-        schedule: # Same options as in TaskScheduleDefinition. Optional for the Legacy Backend System.
+        schedule: # Same options as in SchedulerServiceTaskScheduleDefinition. Optional for the Legacy Backend System.
           # supports cron, ISO duration, "human duration" as used in code
           frequency: { minutes: 30 }
           # supports ISO duration, "human duration" as used in code