Update gorm

[shepherdjerred]

Updating gorm causes the markdownRenderer example to fail:

FAIL: queue_test.go:422: QueueSqliteSuite.TestQueueUpdateGroup

queue_test.go:443:
    c.Check(cancelled, check.Equals, true)
... obtained bool = false
... expected bool = true

OOPS: 9 passed, 1 FAILED
--- FAIL: TestPackage (0.35s)
FAIL
FAIL	github.com/rstudio/platform-lib/v2/examples/cmd/markdownRenderer/store	0.357s