make constants out of non-changing variables

[Godspower-Eze]

Fix build by changing var to const for constant values as used in current version of zig.

[gballet]

build isn't broken, which version of zig are you building with?

[gballet]

and your change does break tests:

src/main.zig:496:19: error: expected type '*crypto.sha2.Sha2x32(.{.iv0 = 1779033703, .iv1 = 3144134277, .iv2 = 1013904242, .iv3 = 2773480762, .iv4 = 1359893119, .iv5 = 2600822924, .iv6 = 528734635, .iv7 = 1541459225, .digest_bits = 256})', found '*const crypto.sha2.Sha2x32(.{.iv0 = 1779033703, .iv1 = 3144134277, .iv2 = 1013904242, .iv3 = 2773480762, .iv4 = 1359893119, .iv5 = 2600822924, .iv6 = 528734635, .iv7 = 1541459225, .digest_bits = 256})'
src/main.zig:496:19: note: cast discards const qualifier
/opt/hostedtoolcache/zig/0.11.0/x86_64-linux/lib/std/crypto/sha2.zig:115:26: note: parameter type declared here
src/main.zig:496:19: error: expected type '*crypto.sha2.Sha2x32(.{.iv0 = 1779033703, .iv1 = 3144134277, .iv2 = 1013904242, .iv3 = 2773480762, .iv4 = 1359893119, .iv5 = 2600822924, .iv6 = 528734635, .iv7 = 1541459225, .digest_bits = 256})', found '*const crypto.sha2.Sha2x32(.{.iv0 = 1779033703, .iv1 = 3144134277, .iv2 = 1013904242, .iv3 = 2773480762, .iv4 = 1359893119, .iv5 = 2600822924, .iv6 = 528734635, .iv7 = 1541459225, .digest_bits = 256})'
src/main.zig:496:19: note: cast discards const qualifier
/opt/hostedtoolcache/zig/0.11.0/x86_64-linux/lib/std/crypto/sha2.zig:115:26: note: parameter type declared here

I'm not against merging this to accommodate future zig versions, but 0.11.0 is the reference version and needs to build.

[Godspower-Eze]

build isn't broken, which version of zig are you building with?

0.12.0-dev.1773+8a8fd47d2

[Godspower-Eze]

What command do use in running your test?

[gballet]

We only support the latest release, so if it breaks in master we'll wait for the breaking changes to be merged and released before upgrading versions.

The test commands can be seen in the ci file:

zig build test --summary all

[gballet]

Could you please remove the .DS_Store?

[gballet]

LGTM. Thank you for being my first contributor!👋