builtin/repo: fix table alignment for UTF-8 characters #25444

Job	Run time
config	6s
win+VS build	0s
fuzz smoke test	1m 17s
win build	5m 14s
win+Meson build	3m 57s
rust-analysis	1m 32s
osx-meson (macos-14)	35m 4s
osx-reftable (macos-14)	26m 47s
osx-clang (macos-14)	24m 5s
osx-gcc (macos-14)	18m 46s
sparse	3m 27s
documentation	7m 6s
static-analysis	5m 14s
linux-reftable-leaks (ubuntu:rolling)	36m 53s
linux32 (i386/ubuntu:focal)	10m 16s
almalinux-8 (almalinux:8)	9m 43s
debian-11 (debian:11)	8m 4s
linux-reftable (ubuntu:rolling)	12m 52s
linux-TEST-vars (ubuntu:20.04)	12m 55s
linux-sha256 (ubuntu:rolling)	13m 15s
linux-musl-meson (alpine:latest)	8m 2s
linux-meson (ubuntu:rolling)	14m 4s
linux-leaks (ubuntu:rolling)	34m 17s
linux-asan-ubsan (ubuntu:rolling)	35m 22s
fedora-breaking-changes-meson (fedora:latest)	10m 4s
linux-breaking-changes (ubuntu:rolling)	12m 18s
win+VS test	0s
win test (5)	8m 25s
win test (4)	10m 20s
win test (6)	8m 50s
win test (8)	10m 20s
win test (0)	6m 27s
win test (9)	6m 58s
win test (1)	8m 19s
win test (7)	7m 30s
win test (3)	4m 47s
win test (2)	8m 22s
win+Meson test (0)	11m 15s
win+Meson test (1)	7m 22s
win+Meson test (2)	12m 9s
win+Meson test (4)	10m 20s
win+Meson test (7)	8m 16s
win+Meson test (6)	8m 27s
win+Meson test (8)	7m 51s
win+Meson test (5)	15m 8s
win+Meson test (3)	12m 19s
win+Meson test (9)	9m 25s
	8h 53m 30s

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