chore(deps): update gitsign-v1-3 to c278dad

Image created from 'https://github.com/securesign/gitsign?rev=94f370f68eeee6bcfd877119381312bef880870e'

Signed-off-by: red-hat-konflux <126015336+red-hat-konflux[bot]@users.noreply.github.com>

Author: red-hat-konflux[bot]

Dockerfile.clients.rh

@@ -1,6 +1,6 @@
 # Provides the Trusted Artifact Signer CLI binaries, cosign and gitsign
 FROM quay.io/securesign/cli-cosign@sha256:b7599fcedc9a0777b71b048f7a5ca39371484483d25ddf33c4b4949a66d7eb78 AS cosign
-FROM quay.io/securesign/gitsign@sha256:576459d1b82dc036d46c167a82d637e7924300668bffd8e3eebc0e9b349157c6 AS gitsign
+FROM quay.io/securesign/gitsign@sha256:c278dadedaeade13e30989a45012ec6672b494468e77793f1c4b82d09faeab94 AS gitsign
 
 # Provides the Trusted Artifact Signer CLI binary, fetch-tsa-certs
 FROM quay.io/securesign/fetch-tsa-certs@sha256:aebd17387291c5044ca5f6fd38032fbb0039552306a1602b2bc92edecd904927 as fetch_tsa_certs