Manage versioning of Poetry tool dependency

.github/workflows/check-yaml-task.yml

@@ -1,10 +1,6 @@
 # Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/check-yaml-task.md
 name: Check YAML
 
-env:
-  # See: https://github.com/actions/setup-python/tree/main#available-versions-of-python
-  PYTHON_VERSION: "3.9"
-
 # See: https://docs.github.com/actions/writing-workflows/choosing-when-your-workflow-runs/events-that-trigger-workflows
 on:
   create:
@@ -103,9 +99,6 @@ jobs:
         with:
           python-version-file: pyproject.toml
 
-      - name: Install Poetry
-        run: pip install poetry
-
       - name: Install Task
         uses: arduino/setup-task@v2
         with:

.github/workflows/spell-check-task.yml

@@ -1,10 +1,6 @@
 # Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/spell-check-task.md
 name: Spell Check
 
-env:
-  # See: https://github.com/actions/setup-python/tree/main#available-versions-of-python
-  PYTHON_VERSION: "3.9"
-
 # See: https://docs.github.com/actions/writing-workflows/choosing-when-your-workflow-runs/events-that-trigger-workflows
 on:
   create:
@@ -57,9 +53,6 @@ jobs:
         with:
           python-version-file: pyproject.toml
 
-      - name: Install Poetry
-        run: pip install poetry
-
       - name: Install Task
         uses: arduino/setup-task@v2
         with:

Taskfile.yml

@@ -7,7 +7,7 @@
 vars:
   # Path of the primary npm-managed project:
   DEFAULT_NPM_PROJECT_PATH: ./
   # Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/assets/release-go-task/Taskfile.yml
   PROJECT_NAME: "arduinoOTA"
   DIST_DIR: "dist"
   # build vars
@@ -19,7 +19,7 @@
     sh: echo "{{now | date "20060102"}}"
   TAG:
     sh: echo "$(git tag --points-at=HEAD 2> /dev/null | head -n1)"
   VERSION: "{{if .NIGHTLY}}nightly-{{.TIMESTAMP_SHORT}}{{else if .TAG}}{{.TAG}}{{else}}{{.PACKAGE_NAME_PREFIX}}git-snapshot{{end}}"
   CONFIGURATION_PACKAGE: "github.com/arduino/arduinoOTA/version"
   LDFLAGS: >-
     -ldflags
@@ -32,10 +32,10 @@
   DEFAULT_GO_MODULE_PATH: ./
   DEFAULT_GO_PACKAGES:
     sh: |
       echo $(cd {{default .DEFAULT_GO_MODULE_PATH .GO_MODULE_PATH}} && go list ./... | tr '\n' ' ' || echo '"ERROR: Unable to discover Go packages"')
 
 tasks:
   # Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/assets/check-workflows-task/Taskfile.yml
   ci:validate:
     desc: Validate GitHub Actions workflows against their JSON schema
     vars:
@@ -68,7 +68,7 @@
     # This is an "umbrella" task used to call any documentation generation processes the project has.
     # It can be left empty if there are none.
 
   # Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/assets/check-general-formatting-task/Taskfile.yml
   general:check-formatting:
     desc: Check basic formatting style of all files
     cmds:
@@ -80,7 +80,7 @@
         fi
       - ec
 
   # Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/assets/check-prettier-formatting-task/Taskfile.yml
   general:format-prettier:
     desc: Format all supported files with Prettier
     deps:
@@ -92,7 +92,7 @@
             --write \
             .
 
   # 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
     cmds:
@@ -347,9 +347,42 @@
             -r "{{.STYLELINTRC_SCHEMA_PATH}}" \
             -d "{{.INSTANCE_PATH}}"
 
+  poetry:install:
+    desc: Install Poetry
+    run: once
+    cmds:
+      - |
+        if ! which pipx &>/dev/null; then
+          echo "pipx not found or not in PATH."
+          echo "Please install: https://pipx.pypa.io/stable/installation/#installing-pipx"
+          exit 1
+        fi
+      - |
+        if ! which yq &>/dev/null; then
+          echo "yq not found or not in PATH."
+          echo "Please install: https://github.com/mikefarah/yq/#install"
+          exit 1
+        fi
+      - |
+        export PIPX_DEFAULT_PYTHON="$( \
+          task utility:normalize-path \
+            RAW_PATH="$(which python)" \
+        )"
+        pipx install \
+          --force \
+          "poetry==$( \
+            yq \
+              --input-format toml \
+              --output-format yaml \
+              '.tool.poetry.group.pipx.dependencies.poetry' \
+              < pyproject.toml
+          )"
+
   # Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/assets/poetry-task/Taskfile.yml
   poetry:install-deps:
     desc: Install dependencies managed by Poetry
+    deps:
+      - task: poetry:install
     cmds:
       - poetry install --no-root