point kanister tool image to use kopia@v0.14.1 (#2417)

Co-authored-by: Le Tran <le.tran@kasten.io>
Co-authored-by: kale-amruta <41624751+kale-amruta@users.noreply.github.com>

.goreleaser.yml

@@ -62,8 +62,8 @@ dockers:
   dockerfile: 'docker/tools/Dockerfile'
   build_flag_templates:
   - "--build-arg=kan_tools_version={{ .Tag }}"
-# Refers to https://github.com/kopia/kopia/commit/3551f743d762f2ffe669523272d1c8d734120b79
-  - "--build-arg=kopia_build_commit=3551f74"
+# Refers to https://github.com/kopia/kopia/commits/v0.14.1
+  - "--build-arg=kopia_build_commit=1f70992"
   - "--build-arg=kopia_repo_org=kopia"
   extra_files:
   - 'LICENSE'