fix: preserve variable names declared with `var` (#7903) #7

Job	Run time
Check license of dependencies	24s
Check Source Changed	6s
Run benchmark	0s
Pnpm Lockfile Check	31s
Run Ecosystem CI	0s
Spell check	7s
Get Runner Labels / Get Runner Labels	1s
Test Release Linux	0s
Test Release Windows	0s
Test Release Mac	0s
Rust Changes	4s
Lint and format website	58s
Lint and format code	37s
Test Linux / Build	9m 47s
Test Mac / Build	6m 9s
Test Windows / Build	17m 24s
Check Rust Unused Dependencies	36s
Rust test	5m 27s
Rust check	5m 2s
Test Mac / Test Node 18	53s
Test Mac / E2E Testing	0s
Test Linux / E2E Testing	1m 50s
Test Linux / Test Node 16	13m 4s
Test Linux / Test Node 18	12m 51s
Test Linux / Test Node 20	12m 59s
Test Windows / Test Node 18	13m 29s
Test Windows / E2E Testing	0s
Failure Notification	0s
	1h 42m 19s

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