Reserve fields in executin protos (#6321) #6312

Job	Run time
Dry Run Goreleaser	7m 35s
Test Getting started	5m 10s
flyteadmin integration tests image / build_docker	2m 49s
Lint (datacatalog) / Run Lint	2m 39s
Lint (flyteadmin) / Run Lint	3m 41s
Lint (flytecopilot) / Run Lint	1m 54s
Lint (flytectl) / Run Lint	2m 44s
Lint (flyteidl) / Run Lint	2m 6s
Lint (flytepropeller) / Run Lint	3m 28s
Lint (flyteplugins) / Run Lint	3m 5s
Lint (flytestdlib) / Run Lint	2m 44s
Unit Tests (datacatalog) / Run Unit Test	3m 2s
Unit Tests (flyteadmin) / Run Unit Test	5m 15s
Unit Tests (flytecopilot) / Run Unit Test	2m 47s
Unit Tests (flytectl) / Run Unit Test	3m 51s
Unit Tests (flyteplugins) / Run Unit Test	4m 5s
Unit Tests (flytepropeller) / Run Unit Test	4m 12s
Check Go Generate (datacatalog) / Go Generate	1m 41s
Check Go Generate (flyteadmin) / Go Generate	2m 45s
Unit Tests (flytestdlib) / Run Unit Test	3m 58s
Check Go Generate (flytecopilot) / Go Generate	1m 37s
Check Go Generate (flytectl) / Go Generate	2m 21s
Check Go Generate (flytepropeller) / Go Generate	2m 15s
Build Images / Build & Push Image (datacatalog) / Push to Github Registry	4m 49s
Build Images / Build & Push Image (flyteadmin) / Push to Github Registry	7m 46s
Build Images / Build & Push Image (flytecopilot) / Push to Github Registry	4m 33s
Build Images / Build & Push Image (flytepropeller) / Push to Github Registry	7m 22s
Build Images / Build & Push Image (flytescheduler) / Push to Github Registry	8m 11s
Integration Test (flyteadmin) / Integration tests	6m 16s
	1h 54m 41s

Provide feedback