Adding Policy Controller to SHA builds

[didierofrivia]

Closes #376
Depends on #378

This PR does the following:

1. Adds the policy controller to the scheduled builds daily
2. Stores the latest sha tag in an org level variable

[codecov]

Codecov Report

Merging #379 (f18eeec) into main (bf5fc99) will decrease coverage by 0.40%.
The diff coverage is n/a.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #379      +/-   ##
==========================================
- Coverage   65.63%   65.24%   -0.40%     
==========================================
  Files          35       35              
  Lines        3795     3795              
==========================================
- Hits         2491     2476      -15     
- Misses       1115     1125      +10     
- Partials      189      194       +5     

Flag	Coverage Δ
integration	70.77% <ø> (-0.75%)	⬇️
unit	58.90% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
api/v1beta1 (u)	∅ <ø> (∅)
pkg/common (u)	76.92% <ø> (ø)
pkg/istio (u)	37.11% <ø> (ø)
pkg/log (u)	31.81% <ø> (ø)
pkg/reconcilers (u)	33.21% <ø> (ø)
pkg/rlptools (u)	56.46% <ø> (ø)
controllers (i)	70.77% <ø> (-0.75%)	⬇️

see 5 files with indirect coverage changes

[maleck13]

@didierofrivia should be able to use release-0.3 now it has been updated