IAM: Implement update method in team API (#111660)

* implement team update in legacy store

* add unit tests

* add integration test

* set permissions for user in integration tests

* add more integration tests for update

* update validations

* add unit tests for ValidateOnUpdate() func

* fix integration test

pkg/registry/apis/iam/legacy/testdata/mysql--update_team-update_team_basic.sql

@@ -0,0 +1,7 @@
+UPDATE `grafana`.`team`
+SET name = 'Team 1',
+    updated = '2023-01-01 12:00:00',
+    email = 'team1@example.com',
+    is_provisioned = TRUE,
+    external_uid = 'team-1-uid'
+WHERE uid = 'team-1'

pkg/registry/apis/iam/legacy/testdata/postgres--update_team-update_team_basic.sql

@@ -0,0 +1,7 @@
+UPDATE "grafana"."team"
+SET name = 'Team 1',
+    updated = '2023-01-01 12:00:00',
+    email = 'team1@example.com',
+    is_provisioned = TRUE,
+    external_uid = 'team-1-uid'
+WHERE uid = 'team-1'

pkg/registry/apis/iam/legacy/testdata/sqlite--update_team-update_team_basic.sql

@@ -0,0 +1,7 @@
+UPDATE "grafana"."team"
+SET name = 'Team 1',
+    updated = '2023-01-01 12:00:00',
+    email = 'team1@example.com',
+    is_provisioned = TRUE,
+    external_uid = 'team-1-uid'
+WHERE uid = 'team-1'