deps: Update vendorSha256 with script.

update-deps.sh

@@ -0,0 +1,18 @@
+#! /usr/bin/env nix-shell
+#! nix-shell --pure -i bash -p go gitMinimal gnused nixUnstable
+
+set -euxo pipefail
+
+go mod tidy
+git add go.sum go.mod
+
+# e is extension of new sed that replace backreference in REPLACEMENT then execute the new script.
+# it is a gnu extension but we use gnused so we are safe
+# cf: https://unix.stackexchange.com/a/194229/246754
+# originally I did sed -i -e 's#vendorSha256 = ".*";#vendorSha256 = "'"$(nix build .#fic-admin.go-modules 2>&1 | sed -ne 's/ *got: *//p')"'";#' flake.nix
+# this has 2 draw back:
+# - not idem potent the second run will output ""
+# - it hide all other error message it was ridiculous since I omitted nixUnstable and got nix: command not found in bash subshell (set -e didn't helped)
+# If one need to avoid gnu extension you might be able to swap stdout and stderr (cf https://stackoverflow.com/q/3618078/7227940) and pipe to sh
+nix build .#fic-admin.go-modules 2>&1 | sed -e 's/ *got: *\(.*\)/sed -i -e "s#vendorSha256 = \\\".*\\\";#vendorSha256 = \\\"\1\\\";#" flake.nix/pe'
+git add flake.nix