feat: add untrusted footer parsing for key rotation (#67) #301

Job	Run time
Default Features (batteries_included + v4)	1m 57s
Test Suite (v1_public)	53s
Test Suite (v2_public)	58s
Test Suite (v1_local)	1m 9s
Test Suite (v2_local)	56s
Test Suite (v3_public)	1m 3s
Test Suite (v4_public)	1m 11s
Test Suite (v3_local)	51s
Security Audit	2m 43s
Clippy (v1_public)	28s
Clippy (v3_public)	28s
Clippy (v4_local)	33s
Clippy (v1_local)	28s
Clippy (v2_public)	39s
Clippy (v2_local)	34s
Clippy (v3_local)	33s
Clippy (v4_public)	17s
Test Suite (v4_local)	1m 0s
	16m 41s

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