chore: bump version to 0.8.6

[Jon-Becker]

Motivation

Solution

[github-actions]

Benchmark for 3c42927

Click to view benchmark

Test	Base	PR	%
heimdall_cfg/complex	13.9±0.10ms	14.3±0.11ms	+2.88%
heimdall_cfg/simple	2.1±0.01ms	2.2±0.06ms	+4.76%
heimdall_decoder/seaport	40.0±2.06µs	40.0±0.79µs	0.00%
heimdall_decoder/transfer	2.8±0.24µs	2.9±0.28µs	+3.57%
heimdall_decoder/uniswap	11.8±0.39µs	11.6±0.21µs	-1.69%
heimdall_decompiler/abi_complex	60.5±1.32ms	59.8±0.85ms	-1.16%
heimdall_decompiler/abi_simple	2.3±0.03ms	2.2±0.02ms	-4.35%
heimdall_decompiler/sol_complex	71.9±1.27ms	72.5±0.96ms	+0.83%
heimdall_decompiler/sol_simple	2.7±0.02ms	2.7±0.04ms	0.00%
heimdall_decompiler/yul_complex	64.0±0.61ms	62.5±3.87ms	-2.34%
heimdall_decompiler/yul_simple	2.5±0.07ms	2.4±0.02ms	-4.00%
heimdall_disassembler/complex	958.8±42.25µs	973.9±36.69µs	+1.57%
heimdall_disassembler/simple	46.5±1.16µs	46.3±1.55µs	-0.43%
heimdall_vm/erc20_transfer	350.2±11.75µs	342.5±8.31µs	-2.20%
heimdall_vm/fib	855.6±13.71µs	858.9±41.40µs	+0.39%
heimdall_vm/ten_thousand_hashes	5.1±0.11s	5.1±0.16s	0.00%