chore(deps): update gitsign-v1-2 to 31021d1

Image created from 'https://github.com/securesign/gitsign?rev=6e9e986066f2a3e906d3b4f912c31227810c4b3d'

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@sha256:8efb2c8f77e91d7a15063ddc6f7eca1226a494f0f9340590af6e3a2eb9c462c3 AS cosign
-FROM quay.io/securesign/gitsign@sha256:4c59990381ce313cd845257e95fd2e910b3d84459c5b3c3aa09fce954a328101 AS gitsign
+FROM quay.io/securesign/gitsign@sha256:31021d1000510f85072c14c619220c7f24406f2c055770190c265ef8376b609d AS gitsign
 
 # Provides the Trusted Artifact Signer CLI binary, fetch-tsa-certs
 FROM quay.io/securesign/fetch-tsa-certs@sha256:e001128c079f0355e88161c08f092d0d5b0d2f984fdb672002d4bcddf9585cd5 as fetch_tsa_certs