Dash*, (削除) 87 (削除ここまで) 86 bytes
*Actually this is aimed at Busybox 1.31.1 ash, sed, seq and printf, but TIO didn't have that environment. NB available seq options are pretty minimal.
for p in `seq 9 -1 2;seq 9`;do seq -s"`printf "%${p}s_"`" 10;done|sed s/10/0/\;s/._//g
Explanation
for p in `seq 9 -1 2;seq 9`
Produce 9-2, 1-9, used to create separator in next seq
;do seq -s"`printf "%${p}s_"`" 10
Print 1-10, separated with p ×ばつ spaces, with marker _ appended; results in 1 too many spaces (but seq won't accept an empty separator), the marker _ helps us to remove the spare spaces below.
;done|sed s/10/0/\;s/._//g
Remove the 1 from trailing 10, remove the marker _ and the extra space before it, to get the proper spacing.
EDIT: removed a silly space (thanks Kevin Cruijssen)
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