Zhaohui Shi

sslcertfile: add ca-certificates from homebrew on apple silicon

1

> This v1.1 template stands in `.github/`. ### This PR > Add character x `[x]`. - [x] I've read the [DCO](http://www.offlineimap.org/doc/dco.html). - [x] I've read the [Coding Guidelines](http://www.offlineimap.org/doc/CodingGuidelines.html) - [x]...

Different version of draw.io will report produce different image size. Signed-off-by: Schspa Shi