chore(vm): enable `strict-boolean-expressions` rule for `eslint`

[faustbrian]

Part of https://github.com/ethereumjs/ethereumjs-monorepo/issues/2137

[codecov[bot]]

Codecov Report

Merging #2151 (3b59bfe) into master (f5a1d77) will decrease coverage by 7.06%. The diff coverage is 57.69%.

Flag	Coverage Δ
block	83.81% <100.00%> (?)
blockchain	80.46% <50.00%> (?)
client	77.06% <ø> (?)
common	95.31% <66.66%> (?)
devp2p	82.57% <ø> (?)
ethash	90.81% <42.85%> (?)
evm	40.71% <ø> (?)
rlp	90.47% <0.00%> (ø)
statemanager	84.55% <ø> (?)
trie	81.02% <100.00%> (?)
util	87.22% <ø> (?)
vm	?

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[faustbrian]

Closing this since it falls in the same category as Uint8Array in terms of breaking changes/impact.