feat(logger): adopted Utility class & updated unit tests (#550)

* feat: adopted Utility class & updated unit tests

* docs: added notice in docs

* WIP

* build: added commons dependency

* deps: fixed lock

* rebuilt lock after rebase

* chore: update commented

* set explicit packages order

* amend lock

* run with older

* removed commons from workspace

* build: added foreground-scripts flag to CI

* fix: issue with workflows

* fix: lock file

Author: dreamorosi

Diff for: .github/workflows/on-merge-to-main.yml

@@ -33,7 +33,8 @@ jobs:
         npm set "//registry.npmjs.org/:_authToken=${{ secrets.NPM_TOKEN }}"
     - name: Install monorepo packages
       # This installs all the dependencies of ./packages/*
-      run: npm ci
+      # See https://github.com/npm/cli/issues/4475 to see why --foreground-scripts
+      run: npm ci --foreground-scripts
     - name: Install example packages
       # Since we are not managing the cdk examples with npm workspaces we install
       # the dependencies in a separate step

Diff for: .github/workflows/on-release-prod.yml

@@ -30,7 +30,8 @@ jobs:
         npm set "//registry.npmjs.org/:_authToken=${{ secrets.NPM_TOKEN }}"
     - name: Install monorepo packages
       # This installs all the dependencies of ./packages/*
-      run: npm ci
+      # See https://github.com/npm/cli/issues/4475 to see why --foreground-scripts
+      run: npm ci --foreground-scripts
     - name: Install example packages
       # Since we are not managing the cdk examples with npm workspaces we install
       # the dependencies in a separate step

Diff for: .github/workflows/pr_lint_and_test.yml

@@ -20,7 +20,8 @@ jobs:
           npm set "//registry.npmjs.org/:_authToken=${{ secrets.NPM_TOKEN }}"
       - name: Install monorepo packages
         # This installs all the dependencies of ./packages/*
-        run: npm ci
+        # See https://github.com/npm/cli/issues/4475 to see why --foreground-scripts
+        run: npm ci --foreground-scripts
       - name: Install example packages
         # Since we are not managing the cdk examples with npm workspaces we install
         # the dependencies in a separate step

Diff for: .github/workflows/run-e2e-tests.yml

@@ -27,7 +27,8 @@ jobs:
       run: npm i -g npm@next-8
     - name: Install monorepo packages
       # This installs all the dependencies of ./packages/*
-      run: npm ci
+      # See https://github.com/npm/cli/issues/4475 to see why --foreground-scripts
+      run: npm ci --foreground-scripts
     - name: Install example packages
       # Since we are not managing the cdk examples with npm workspaces we install
       # the dependencies in a separate step

Diff for: docs/core/logger.md

@@ -44,6 +44,8 @@ For a **complete list** of supported environment variables, refer to [this secti
 
 #### Example using AWS Serverless Application Model (SAM)
 
+The `Logger` utility is instantiated outside of the Lambda handler. In doing this, the same instance can be used across multiple invocations inside the same execution environment. This allows `Metrics` to be aware of things like whether or not a given invocation had a cold start or not.
+
 === "handler.ts"
 
     ```typescript hl_lines="1 4"