Fix previously broken test

[lumaxis]

Instead of triggering the code path at

service/providers/summary/scancode.js

Lines 82 to 83 in 4ae722e

	default:
	throw new Error(`Invalid version of scancode: ${scancodeVersion}`)

, this test previously just tested its own throw new Error line. This is now fixed and the expected error message and fixture adjusted to make the test actually work.

[elrayle]

Nice to see this move toward consistency in case. And great fix on the test.