pref: fix version flag handling

[ttytm]

Current:

❯ v --version
V 0.4.5 3226365
❯ v retry --version
V 0.4.5 3226365
❯ v retry -- git --version
V 0.4.5 3226365

Updated:

❯ v --version
V 0.4.5 21b76c1
❯ v retry --version
v retry 0.0.1
❯ v retry -- git --version
git version 2.44.0

[ttytm]

Further fixes:
Current:

❯ v -cc gcc -v
v: unknown command ``

Updated:

❯ v -cc gcc -v
V 0.4.5 c85c177