Fix node version diagnostic handling on test harness

[kateinoigakukun]

The CompileError usually happens during defaultNodeSetup, so we should catch it there. Also process.version is a string with a v prefix, so we should use process.versions.node, which doesn't have the prefix instead.

[github-actions]

Time Change: -11ms (0%)

Total Time: 9,947ms

View Unchanged

Test name	Duration	Change
Serialization/JavaScript function call through Wasm import	25ms	+0ms
Serialization/JavaScript function call through Wasm import with int	23ms	+0ms
Serialization/JavaScript function call from Swift	130ms	+2ms (1%)
Serialization/Swift Int to JavaScript with assignment	330ms	+0ms
Serialization/Swift Int to JavaScript with call	993ms	+3ms (0%)
Serialization/JavaScript Number to Swift Int	271ms	+4ms (1%)
Serialization/Swift String to JavaScript with assignment	414ms	+1ms
Serialization/Swift String to JavaScript with call	1,071ms	+3ms (0%)
Serialization/JavaScript String to Swift String	3,815ms	-23ms (0%)
Object heap/Increment and decrement RC	2,840ms	-2ms (0%)

View Baselines

Test name	Duration
Serialization/Call JavaScript function directly	9ms
Serialization/Assign JavaScript number directly	8ms
Serialization/Call with JavaScript number directly	9ms
Serialization/Write JavaScript string directly	5ms
Serialization/Call with JavaScript string directly	5ms