fix: don't mount SA token when `automountServiceAccountToken: false`. Fixes #12848 #23520

Job	Run time
argo-images (argoexec)	22s
Get changed files	6s
argo-images (argocli)	4m 1s
Windows Unit Tests	11m 52s
Lint	4m 5s
Codegen	0s
UI	0s
Unit Tests	5m 4s
E2E Tests (test-executor, minimal, false)	15m 45s
E2E Tests (test-corefunctional, minimal, false)	15m 54s
E2E Tests (test-functional, minimal, false)	23m 50s
E2E Tests (test-api, mysql, true)	13m 26s
E2E Tests (test-cli, mysql, true)	13m 51s
E2E Tests (test-cron, minimal, false)	23m 32s
E2E Tests (test-examples, minimal, false)	7m 4s
E2E Tests (test-plugins, plugins, false)	6m 10s
E2E Tests (test-java-sdk, minimal, true)	4m 44s
E2E Tests (test-python-sdk, minimal, true)	4m 14s
E2E Tests (test-executor, v1.28.13+k3s1, minimal, false)	16m 28s
E2E Tests (test-corefunctional, v1.28.13+k3s1, minimal, false)	16m 55s
E2E Tests (test-functional, v1.28.13+k3s1, minimal, false)	23m 36s
E2E Tests - Composite result	1s
	3h 31m 0s

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