Use project version of ajv-cli in validation tasks

The "ajv-cli" command line tool is used for validating data files against their JSON schema. The tool is used to
validate the project's Dependabot and ESLint configuration files.

In general, it is preferable (and for some schemas even mandatory) to use the modern versions of ajv-cli. However,
support for the "Draft-04" schema specification was dropped in ajv-cli version 4.0.0. So when working with JSON schemas
that specify that draft, it is necessary to use ajv-cli 3.3.0, the last compatible version.

Previously, the Dependabot and ESLint schema specified the "Draft-04" specification. For this reason, the
`dependabot:validate` and `eslint:validate` tasks were configured to use ajv-cli@3.3.0.

The schemas have now been updated to use "Draft-07". So the code for using ajv-cli@3.3.0 is removed from these tasks,
and they will now use the standard project level version of ajv-cli.

Author: per1234

Taskfile.yml

@@ -357,6 +357,8 @@ tasks:
 
   dependabot:validate:
     desc: Validate Dependabot configuration files against their JSON schema
+    deps:
+      - task: npm:install-deps
     vars:
       # Source: https://github.com/SchemaStore/schemastore/blob/master/src/schemas/json/dependabot-2.0.json
       SCHEMA_URL: https://json.schemastore.org/dependabot-2.0
@@ -370,25 +372,29 @@ tasks:
       DATA_PATH: ".github/dependabot.yml"
       # The asset Dependabot configuration files.
       ASSETS_DATA_PATH: "workflow-templates/assets/dependabot/**/dependabot.yml"
-      WORKING_FOLDER:
-        sh: task utility:mktemp-folder TEMPLATE="dependabot-validate-XXXXXXXXXX"
     cmds:
       - wget --quiet --output-document="{{.SCHEMA_PATH}}" {{.SCHEMA_URL}}
       - wget --quiet --output-document="{{.BASE_SCHEMA_PATH}}" {{.BASE_SCHEMA_URL}}
       - |
-        npx ajv-cli validate \
-          --all-errors \
-          --strict=false \
-          -s "{{.SCHEMA_PATH}}" \
-          -r "{{.BASE_SCHEMA_PATH}}" \
-          -d "{{.DATA_PATH}}"
+        npx \
+          --package=ajv-cli \
+          --package=ajv-formats \
+          ajv validate \
+            --all-errors \
+            --strict=false \
+            -s "{{.SCHEMA_PATH}}" \
+            -r "{{.BASE_SCHEMA_PATH}}" \
+            -d "{{.DATA_PATH}}"
       - |
-        npx ajv-cli validate \
-          --all-errors \
-          --strict=false \
-          -s "{{.SCHEMA_PATH}}" \
-          -r "{{.BASE_SCHEMA_PATH}}" \
-          -d "{{.ASSETS_DATA_PATH}}"
+        npx \
+          --package=ajv-cli \
+          --package=ajv-formats \
+          ajv validate \
+            --all-errors \
+            --strict=false \
+            -s "{{.SCHEMA_PATH}}" \
+            -r "{{.BASE_SCHEMA_PATH}}" \
+            -d "{{.ASSETS_DATA_PATH}}"
 
   docs:generate:
     desc: Create all generated documentation content
@@ -397,6 +403,8 @@ tasks:
 
   eslint:validate:
     desc: Validate ESLint configuration file against its JSON schema
+    deps:
+      - task: npm:install-deps
     vars:
       # Source: https://github.com/SchemaStore/schemastore/blob/master/src/schemas/json/eslintrc.json
       SCHEMA_URL: https://json.schemastore.org/eslintrc.json
@@ -409,20 +417,19 @@ tasks:
       DATA_PATH: workflow-templates/assets/check-javascript/.eslintrc.yml
       # ajv-cli identifies YAML-format data files by their file extension, so renaming is required:
       # https://github.com/ajv-validator/ajv-cli/issues/117
-      PROJECT_FOLDER:
-        sh: pwd
-      WORKING_FOLDER:
-        sh: task utility:mktemp-folder TEMPLATE="eslintrc-validate-XXXXXXXXXX"
     cmds:
       - wget --quiet --output-document="{{.SCHEMA_PATH}}" {{.SCHEMA_URL}}
       - wget --quiet --output-document="{{.PARTIAL_ESLINT_PLUGINS_PATH}}" {{.PARTIAL_ESLINT_PLUGINS_SCHEMA_URL}}
       - |
-        cd "{{.WORKING_FOLDER}}"  # Workaround for https://github.com/npm/cli/issues/3210
-        npx ajv-cli@{{.SCHEMA_DRAFT_4_AJV_CLI_VERSION}} validate \
-          --all-errors \
-          -s "{{.SCHEMA_PATH}}" \
-          -r "{{.PARTIAL_ESLINT_PLUGINS_PATH}}" \
-          -d "{{.PROJECT_FOLDER}}/{{.DATA_PATH}}"
+        npx \
+          --package=ajv-cli \
+          --package=ajv-formats \
+          ajv validate \
+            --all-errors \
+            --strict=false \
+            -s "{{.SCHEMA_PATH}}" \
+            -r "{{.PARTIAL_ESLINT_PLUGINS_PATH}}" \
+            -d "{{.DATA_PATH}}"
 
   # Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/assets/check-files-task/Taskfile.yml
   general:check-filenames: