CI: Do not use deprecated set-output, update artifact publishing action

[Patrik-Stas]

• set-output:: is deprecated in produces warnings in CI
• removed the usage from our CI code
• upgraded actions/upload-artifact@v3
• set-output:: warnings still coming out from actions-rs/toolchain@v1 - keep eye on set-output command is deprecated actions-rs/toolchain#221

Signed-off-by: Patrik Stas patrik.stas@absa.africa

[codecov-commenter]

Codecov Report

Merging #720 (33a8d02) into main (9e0b170) will decrease coverage by 0.03%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #720      +/-   ##
==========================================
- Coverage   64.34%   64.30%   -0.04%     
==========================================
  Files         245      245              
  Lines       22837    22911      +74     
  Branches     5074     5088      +14     
==========================================
+ Hits        14694    14734      +40     
- Misses       4017     4035      +18     
- Partials     4126     4142      +16     

Flag	Coverage Δ
unittests-aries-vcx	64.16% <ø> (-0.04%)	⬇️

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

Impacted Files	Coverage Δ
...ries_vcx/src/protocols/connection/pairwise_info.rs	37.50% <0.00%> (-19.65%)	⬇️
aries_vcx/src/handlers/mod.rs	8.57% <0.00%> (-2.34%)	⬇️
.../src/protocols/connection/invitee/state_machine.rs	66.35% <0.00%> (-0.19%)	⬇️
.../src/protocols/connection/inviter/state_machine.rs	72.71% <0.00%> (-0.18%)	⬇️
aries_vcx/src/utils/mod.rs	57.69% <0.00%> (ø)
aries_vcx/src/indy/proofs/prover/prover.rs	50.52% <0.00%> (ø)
aries_vcx/src/common/proofs/prover/prover.rs	51.42% <0.00%> (ø)
messages/src/protocols/connection/response.rs	80.68% <0.00%> (ø)
aries_vcx/src/common/proofs/verifier/verifier.rs	83.94% <0.00%> (ø)
...c/protocols/connection/invitee/states/responded.rs	11.11% <0.00%> (ø)
... and 4 more

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