Feast v0.8.1

Implemented enhancements:

• Expires Redis Keys based on Feature Table Max Age #1161 (khorshuheng)
• Jobservice control loop (based on #1140) #1156 (oavdeev)

Fixed bugs:

• Lazy metrics initialization (to correct pick up in executor) #1195 (pyalex)
• Add missing third_party folder #1185 (terryyylim)
• Fix missing name variable instantiation #1166 (terryyylim)

Merged pull requests:

• Bump ssh-agent version #1175 (terryyylim)
• Refactor configurable options and add sphinx docs #1174 (terryyylim)
• Stabilize flaky e2e tests #1173 (pyalex)
• Fix connection resets in CI for Maven #1164 (woop)
• Add dataproc executor resource config #1160 (terryyylim)
• Fix github workflow deprecating env variable #1158 (terryyylim)
• Ensure consistency of github workflow #1157 (terryyylim)