[tlbuild] Github action fails for Solaris

[Norbert Preining]

Hi Andreas,

> 	https://github.com/vmactions/solaris-vm/issues/41

One part was fixed in solaris-vm, another thanks to the author who gave
direction how to better do the installation.

Should now work again.

Best regards

Norbert

--
PREINING Norbert                              https://www.preining.info
arXiv / Cornell University   +   IFMGA Guide   +   TU Wien  +  TeX Live
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