feat(archive):Add baltakatei OpenPGP public key

Fingerprint:

pub   rsa4096/0xA0A295ABDC3469C9 2017-10-11 [C] [expires: 2022-07-08]
      Key fingerprint = 3457 A265 922A 1F38 39DB  0264 A0A2 95AB DC34 69C9
uid                   [ultimate] Steven Sandoval <baltakatei@gmail.com>
uid                   [ultimate] Steven Sandoval <baltakatei@alumni.stanford.edu>
uid                   [ultimate] [jpeg image of size 1846]
sub   rsa4096/0x6DD7D496916A1253 2018-05-16 [E] [expires: 2022-07-07]
      Key fingerprint = 5E55 5FC6 1C85 871E 813B  5BCF 6DD7 D496 916A 1253
sub   rsa4096/0x57DA57D9517E6F86 2018-05-16 [S] [expires: 2022-07-07]
      Key fingerprint = 38F9 6437 C83A C88E 28B7  A952 57DA 57D9 517E 6F86
sub   rsa4096/0x5F9D26B9A598A2D3 2018-05-16 [A] [expires: 2022-07-07]
      Key fingerprint = EDCA 7EE7 D09E 7F2E 1DF6  A229 5F9D 26B9 A598 A2D3