use serde to parse tools

[jdx]

this is arguably a wash when it comes to the code, I don't think it's that much better, but I do think it will be more reliable and most importantly it shows much better error messages when parsing fails

[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
✅ +0.11%	✅ 94.82%

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (a43f40b)	16469	13840	84.04%
Head commit (dc72596)	16488 (+19)	13874 (+34)	84.15% (+0.11%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#1599)	193	183	94.82%

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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