Don't panic when version cannot be parsed

[Grazfather]

I typod a version and noticed that zigup aborted.

This might be just a tiny bit nicer

Before

❯ ./zig-out/bin/zigup 0.1.00
install directory '/Users/g/.local/share/zigup'
mkdir -p '/Users/g/.local/share/zigup'
thread 38496615 panic: invalid version '0.1.00'
Unable to dump stack trace: debug info stripped
Abort trap: 6

After

❯ ./zig-out/bin/zigup 0.1.00
install directory '/Users/g/.local/share/zigup'
mkdir -p '/Users/g/.local/share/zigup'
error: InvalidVersion

[marler8997]

I agree this can be improved, I'm not sure I prefer not printing the version in the resulting error message.

[Grazfather]

I figured it's basically right there on the cli, but I could have it log and return if that's what you prefer.

[marler8997]

I pushed a commit, does this solution work for you?

zig-out\bin\zigup foo
install directory 'C:\git\zigup\zig-out\bin\zig'
mkdir "C:\git\zigup\zig-out\bin\zig"
error: invalid zig version 'foo', unable to create a download URL for it

[Grazfather]

Yep looks good to me! I just thought an abort was a little ugly.