Add support for PHP 8.1

[vearutop]

No description provided.

[github-actions]

Lines Of Code

Language	Files	Lines	Code	Comments	Blanks	Complexity	Bytes
JSON	9	8225 (+5)	8225 (+5)	0	0	0	233.6K (+82B)
Markdown	2	259 (+6)	192 (+4)	0	67 (+2)	0	8.3K (+141B)
PHP	213	29799 (+9)	17293 (+1)	8858 (+9)	3648 (-1)	710	824.8K (+284B)
Patch	1 (+1)	167 (+167)	149 (+149)	0	18 (+18)	0	5.5K (+5.5K)
YAML	5	177	160	1	16	0	4.2K (+7B)

[codecov]

Codecov Report

Merging #43 (91c55da) into master (e172e5e) will decrease coverage by 0.21%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master      #43      +/-   ##
============================================
- Coverage     86.79%   86.57%   -0.22%     
============================================
  Files            40       39       -1     
  Lines          1749     1721      -28     
============================================
- Hits           1518     1490      -28     
  Misses          231      231              

Impacted Files	Coverage Δ
src/JsonSchema/PhpBuilder.php	85.00% <ø> (ø)
src/JSDoc/TypeBuilder.php	72.14% <0.00%> (-1.15%)	⬇️
src/Markdown/TypeBuilder.php	76.25% <0.00%> (-0.64%)	⬇️
src/JsonSchema/TypeBuilder.php	95.18% <0.00%> (-0.28%)	⬇️
src/JsonSchema/SchemaBuilder.php	93.81% <0.00%> (-0.15%)	⬇️
src/Types/ReferenceTypeOf.php

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