Add wasm-opt to gitignore

[andrewhassan]

WHY are these changes introduced?

The wasm-opt.cjs file is not included in the gitignore, but it shouldn't be committed.

WHAT is this pull request doing?

This PR adds wasm-opt to the gitignore.

Measuring impact

How do we know this change was effective? Please choose one:

• n/a - this doesn't need measurement, e.g. a linting rule or a bug-fix
• Existing analytics will cater for this addition
• PR includes analytics changes to measure impact

Checklist

• I've considered possible cross-platform impacts (Mac, Linux, Windows)
• I've considered possible documentation changes

[github-actions]

Coverage report

St.❔	Category	Percentage	Covered / Total
🟡	Statements	75.23% (-0.01% 🔻)	8805/11704
🟡	Branches	70.55%	4278/6064
🟡	Functions	75.02%	2304/3071
🟡	Lines	75.77%	8323/10984

Show files with reduced coverage 🔻

St.❔	File	Statements	Branches	Functions	Lines
🟢	... / app-event-watcher.ts	93.83% (-1.23% 🔻)	86.49%	90.48%	98.61%
🟢	... / ConcurrentOutput.tsx	98.36% (-1.64% 🔻)	88% (-4% 🔻)	100%	98.33% (-1.67% 🔻)

Test suite run success

1987 tests passing in 898 suites.

Report generated by 🧪jest coverage report action from 81623c4