chore: improve integration tests (#8727)

Improve integration tests:
- spliting the tests in TokenExchange to isolated instances and in
parallel
- corrected some test structure so that the check for Details is no done
anymore if the test already failed
- replace required-calls with assert-calls to not stop the testing
- add gofakeit for application, project and usernames(emails)
- add eventually checks for testing in actions v2, so the request only
get called when the execution is defined
- check for length of results in list/search endpoints to avoid index
errors

internal/api/grpc/admin/integration_test/server_test.go

@@ -35,19 +35,18 @@ func TestMain(m *testing.M) {
 }
 
 func await(t *testing.T, ctx context.Context, cb func(*assert.CollectT)) {
-	deadline, ok := ctx.Deadline()
-	require.True(t, ok, "context must have deadline")
+	retryDuration, tick := integration.WaitForAndTickWithMaxDuration(ctx, time.Minute)
 	require.EventuallyWithT(
 		t,
 		func(tt *assert.CollectT) {
 			defer func() {
 				// Panics are not recovered and don't mark the test as failed, so we need to do that ourselves
-				require.Nil(t, recover(), "panic in await callback")
+				assert.Nil(tt, recover(), "panic in await callback")
 			}()
 			cb(tt)
 		},
-		time.Until(deadline),
-		time.Second,
+		retryDuration,
+		tick,
 		"awaiting successful callback failed",
 	)
 }