dockerfilegraph: update checksum for 0.19.2 release

[stefanb]

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Found in

• go 1.26rc2, [email protected] 1.25.6 (new formula) #258912

Log https://github.com/Homebrew/homebrew-core/actions/runs/21056619831/job/60555592960?pr=258912#step:3:7597 :

==> brew fetch --build-from-source --retry dockerfilegraph
==> FAILED
Full fetch --build-from-source dockerfilegraph output
  ✘ Formula dockerfilegraph (0.19.2)
  Error: Formula reports different checksum:  ec714828af7cf290fb69942c4bd65debf8d8fa08034f54389c3d32395c4951ea
         SHA-256 checksum of downloaded file: 809fafc2fc5ea97a4c32e01568c82a1698b85b8f303405993b28cd91c5363515

Release workflow logs https://github.com/patrickhoefler/dockerfilegraph/actions/workflows/release.yml
indicate that the tag was moved:

...after

• dockerfilegraph 0.19.2 #262668

To fix failing release workflow:

• fix: adjust workflow permissions to fix release workflow errors patrickhoefler/dockerfilegraph#760

DIff patrickhoefler/dockerfilegraph@233555f...5e17c60 indicates no bottle update is needed.