Add support for prep processes to dependencies license check

For some types of dependency management frameworks, it is necessary to run some operation before the check for
unapproved dependency license types.

No preparation is needed for Go module-based projects like this one, so the preparation task is left empty, but this is
a copy of a "template" asset that is intended to be a "template" that is generally applicable to projects of any type so
the change is brought solely in order to keep the file in sync with the upstream source.

Author: per1234

Taskfile.yml

@@ -257,6 +257,8 @@ tasks:
   # Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/assets/check-dependencies-task/Taskfile.yml
   general:cache-dep-licenses:
     desc: Cache dependency license metadata
+    deps:
+      - task: general:prepare-deps
     cmds:
       - |
         if ! which licensed &>/dev/null; then
@@ -295,6 +297,11 @@ tasks:
     cmds:
       - poetry run codespell --write-changes
 
+  # Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/assets/check-go-dependencies-task/Taskfile.yml
+  general:prepare-deps:
+    desc: Prepare project dependencies for license check
+    # No preparation is needed for Go module-based projects.
+
   # Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/assets/check-yaml-task/Taskfile.yml
   yaml:lint:
     desc: Check for problems with YAML files