v1.3.8

• MC 1.21.7 / 1.21.8 support

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Client-side tested against:

MC version	Litematica Server Paster version	Litematica version
1.14.4	mc1.14.4-*	0.0.0-dev.20191222.014040
1.15.2	mc1.15.2-*	0.0.0-dev.20200515.184506
1.16.5	mc1.16.5-*	0.0.0-dev.20210917.192300
1.17.1	mc1.17.1-*	0.9.0
1.18.2	mc1.18.2-*	0.11.0
1.19.4	mc1.19.2-*	0.14.3
1.20.1	mc1.20.1-*	0.15.0
1.20.2	mc1.20.2-*	0.16.0
1.20.3, 1.20.4	mc1.20.4-*	0.17.0
1.20.5, 1.20.6	mc1.20.6-*	0.18.1
1.21,1.21.1	mc1.21.1	0.19.50
1.21.2,1.21.3	mc1.21.3	0.20.0-sakura.3
1.21.4	mc1.21.3	0.21.0-sakura.2
1.21.5	mc1.21.5	1.21.5-rc1-0.21.999-rc1
1.21.6, 1.21.7	mc1.21.7	1.21.7-0.23.1

Maybe it work other litematica verions, but idk