refactor: don't add env variables in ARGO_TEMPLATE. Partial fix for #13089 #23428

Job	Run time
Get changed files	7s
argo-images (argoexec)	32s
argo-images (argocli)	3m 56s
Unit Tests	4m 55s
Lint	4m 1s
Windows Unit Tests	8m 50s
Codegen	0s
UI	0s
E2E Tests (test-executor, minimal, false)	16m 36s
E2E Tests (test-corefunctional, minimal, false)	14m 48s
E2E Tests (test-functional, minimal, false)	24m 2s
E2E Tests (test-api, mysql, true)	13m 52s
E2E Tests (test-cli, mysql, true)	14m 36s
E2E Tests (test-cron, minimal, false)	23m 29s
E2E Tests (test-examples, minimal, false)	8m 2s
E2E Tests (test-plugins, plugins, false)	5m 44s
E2E Tests (test-java-sdk, minimal, true)	4m 45s
E2E Tests (test-python-sdk, minimal, true)	4m 18s
E2E Tests (test-executor, v1.28.13+k3s1, minimal, false)	17m 39s
E2E Tests (test-corefunctional, v1.28.13+k3s1, minimal, false)	15m 53s
E2E Tests (test-functional, v1.28.13+k3s1, minimal, false)	23m 57s
E2E Tests - Composite result	1s
	3h 30m 3s

Provide feedback