Add CI Test Infra

[isVoid]

This PR adds CI test infrastructures for Numbast. It runs two jobs in parallel:

• One test on an older hardware and CTK version: V100, 12.3 (12.3 is the oldest supported version), x86_64
• One test on a newer hardware and CTK version: A100, 12.4, aarch64

For aarch64 tests, we fix a bug of mismatching ABI when using bfloat16 type. closes #32

Also includes 2 fixes where alignments are not respected on load / store of function argument.