bump version to 0.8.3 #7390

Job	Run time
Build release binary for comparisons	1m 16s
Build Cairo programs (cairo_bench_programs)	16s
Build Cairo programs (cairo_proof_programs)	16s
Build Cairo programs (cairo_test_programs)	17s
Build Cairo programs (cairo_1_test_contracts)	16s
Compute memory and execution traces with cairo-lang (cairo_proof_programs, cairo_proof_trace, 1)	9m 29s
Run tests (test)	9m 42s
Compute memory and execution traces with cairo-lang (cairo_test_programs, cairo_trace, 2)	18s
Run tests (test-no_std)	7m 27s
Run Lints	1m 48s
Make sure all builds work	14m 33s
Run tests (test-wasm)	5m 47s
Run tests (lambdaworks-felt, test)	8m 29s
Run tests (lambdaworks-felt, test-no_std)	6m 17s
Run tests (lambdaworks-felt, test-wasm)	4m 35s
Compute memory and execution traces with cairo-vm (cairo_proof_programs, cairo_programs/proof_pro...	6s
Compute memory and execution traces with cairo-vm (cairo_test_programs, cairo_programs)	6s
Compare memory and execution traces from cairo-lang and cairo-vm (cairo_proof_programs)	12s
Compare memory and execution traces from cairo-lang and cairo-vm (cairo_test_programs)	9s
Upload coverage results to codecov.io	10s
	1h 11m 29s

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