Improve dependency gating on objdiff-core #382

Job	Run time
Deny (advisories)	24s
Build objdiff-gui (ubuntu-latest, x86_64-unknown-linux-gnu, linux-x86_64, libgtk-3-dev, default)	5m 42s
Build objdiff-cli (ubuntu-latest, x86_64-unknown-linux-musl, linux-x86_64, zigbuild, default)	2m 17s
Deny (bans licenses sources)	26s
Check	58s
Build objdiff-gui (windows-latest, x86_64-pc-windows-msvc, windows-x86_64, default)	9m 1s
Build objdiff-cli (ubuntu-latest, i686-unknown-linux-musl, linux-i686, zigbuild, default)	2m 27s
Build objdiff-cli (ubuntu-latest, aarch64-unknown-linux-musl, linux-aarch64, zigbuild, default)	2m 29s
Build objdiff-gui (macos-latest, x86_64-apple-darwin, macos-x86_64, default)	3m 8s
Format	10s
Build objdiff-cli (windows-latest, i686-pc-windows-msvc, windows-x86, build, default)	4m 44s
Test	0s
Build objdiff-gui (macos-latest, aarch64-apple-darwin, macos-arm64, default)	3m 30s
Build objdiff-cli (windows-latest, x86_64-pc-windows-msvc, windows-x86_64, build, default)	4m 12s
Build objdiff-cli (windows-latest, aarch64-pc-windows-msvc, windows-arm64, build, default)	5m 52s
Build objdiff-cli (macos-latest, x86_64-apple-darwin, macos-x86_64, build, default)	1m 57s
Build objdiff-cli (macos-latest, aarch64-apple-darwin, macos-arm64, build, default)	1m 50s
Release	0s
	49m 7s

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