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Change sot563 pad y dimension to 0.34mm to make sure the pad to pad clearance

jxltom requested to merge github/fork/jxltom/feature/update-sot563-clearance into master

As mentioned in https://github.com/KiCad/kicad-footprints/pull/581, all recommended layout has pady smaller than 0.34mm, usually 0.3mm. Though setting pady as 0.4mm matches all datasheet, this makes pad to pad clearance to only 0.1mm. Usually the pcb fabrication in production requires pad to pad clearance as 5mil which is 0.127mm. So this PR changes the pady as 0.34mm, make sure the pad to pad clearance as 0.16mm, then fix the issue

https://www.centralsemi.com/PDFS/CASE/SOT-563PD.PDF https://www.diodes.com/assets/Package-Files/SOT563.pdf https://www.torexsemi.com/file/SOT-563/SOT-563-pkg.pdf https://www.monolithicpower.com/pub/media/document/MP5075L_r1.0.pdf http://www.bourns.com/docs/Product-Datasheets/CDSOT563-T05C.pdf

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