Golang testing and github workflow w/ coverage, dependencies and badges

.github_dependabot.yml

version: 2
updates:
  - package-ecosystem: github-actions
    directory: /
    labels:
      - dependencies
      - actions
      - Skip Changelog
    schedule:
      interval: weekly
      day: sunday
  - package-ecosystem: gomod
    directory: /
    labels:
      - dependencies
      - go
      - Skip Changelog
    schedule:
      interval: weekly
      day: sunday
#  - package-ecosystem: docker
#    directory: /<docker directory>
#    labels:
#      - dependencies
#      - docker
#      - Skip Changelog
#    schedule:
#      interval: weekly
#      day: sunday

.github_workflows_go.yml

# Note: to ensure coverage is only pushed once, you need to constrain on one matrix combination.
name: Go Workflows

on:
  push:
    branches:
      - master
  pull_request:
  workflow_dispatch:

jobs:

  gotest:
    name: Go
    runs-on: ${{ matrix.os }}
    env:
      CGO_ENABLED: 0

    strategy:
      matrix:
        go-version: [ "1.16", "1.18", "1.20", "1.x" ]
        os: [ubuntu-latest, macos-latest, windows-latest]

    steps:
      - name: Set up Go ${{ matrix.go-version }}
        uses: actions/setup-go@v3
        with:
          go-version: ${{ matrix.go-version }}

      - name: Code checkout
        uses: actions/checkout@v3

      - name: Cache Go modules
        uses: actions/cache@v3
        with:
          # In order:
          # * Module download cache
          # * Build cache (Linux)
          # * Build cache (Mac)
          # * Build cache (Windows)
          path: |
            ~/go/pkg/mod
            ~/.cache/go-build
            ~/Library/Caches/go-build
            %LocalAppData%\go-build
          key: ${{ runner.os }}-${{ matrix.go-version }}-go-${{ hashFiles('**/go.sum') }}
          restore-keys: |
            ${{ runner.os }}-${{ matrix.go-version }}-go-

      - name: Test
        run: go test ./...
        #run: make test

      - name: Update Coverage
        uses: ncruces/go-coverage-report@main
        if: |
          matrix.os == 'ubuntu-latest' &&
          matrix.go-version == '1.x' &&
          github.event_name == 'push'
        continue-on-error: true

README.md

[//]: # (Keep one of these)

notes.txt

- Enabling Coverage
  - You need a wiki, so create at least one page. If it doesn't exist, just accept the "Welcome!..." default.
  - Give workflows read/write permissions:
    - Settings -> General -> Workflow permissions -> Read and write permissions -> [Save]
- Enablint Dependabot
  - Settings -> Security -> Code security and analysis ->
    -> Dependabot security updates [Enable]
    -> Dependabot version updates [Enable]