fix: adler32's first 16-bit should default to 1 not 0

[Bilal2453]

Using the default value for the first parameter of lminiz.adler32 will output invalid checksum due to improper defaults.

For example:

local miniz = requrie("miniz")
miniz.adler32(nil, "luvit") --> 110625332

Which is wrong, it should instead be 110953013 (0x069D0235).
For reference take the output of an online calculatore like this one or even the Wikipedia example.

An Adler32 checksum is 32-bit number made of two 16-bit groups A and B, group A should initiate with 1 and group B should initiate with 0. Currently by default group A will default to 0 instead of 1.

@zhaozg Is this right?

[Bilal2453]

Failed tests are unrelated.
@truemedian Seems like the QEMU-based tests are failing due to a fetching error (404).