Update scala-library to 2.12.19 #177

# to view logs


	name: CI
	on: [push, pull_request]
	env:
	CI: true
	CI_SNAPSHOT_RELEASE: +publishSigned
	SCALA_VERSION: 2.12.11
	jobs:
	validate:
	name: Scala ${{ matrix.scala }}, Java ${{ matrix.java }}
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	java: [adopt@1.8, adopt@1.11, adopt@1.14]
	scala: [2.12.11, 2.13.1]
	env:
	SCALA_VERSION: ${{ matrix.scala }}
	steps:
	- uses: actions/checkout@v2
	with:
	fetch-depth: 0
	- uses: olafurpg/setup-scala@v10
	with:
	java-version: ${{ matrix.java }}
	- name: Cache Coursier
	uses: actions/cache@v1
	with:
	path: ~/.cache/coursier
	key: sbt-coursier-cache
	- name: Cache SBT
	uses: actions/cache@v1
	with:
	path: ~/.sbt
	key: sbt-${{ hashFiles('**/build.sbt') }}
	- name: Compile
	run: sbt ++$SCALA_VERSION test:compile
	- name: Check compatibility
	run: sbt ++$SCALA_VERSION mimaReportBinaryIssues
	- name: Test
	run: sbt ++$SCALA_VERSION test
	- name: Scaladoc
	run: sbt ++$SCALA_VERSION doc
	# docs:
	# name: Doc Site
	# runs-on: ubuntu-latest
	# steps:
	# - uses: actions/checkout@v2
	# - uses: olafurpg/setup-scala@v10
	# - name: Cache Coursier
	# uses: actions/cache@v1
	# with:
	# path: ~/.cache/coursier
	# key: sbt-coursier-cache
	# - name: Cache SBT
	# uses: actions/cache@v1
	# with:
	# path: ~/.sbt
	# key: sbt-${{ hashFiles('**/build.sbt') }}
	# - name: Set up Ruby 2.6
	# uses: actions/setup-ruby@v1
	# with:
	# ruby-version: 2.6
	# - name: Install Jekyll
	# run: \|
	# gem install bundler
	# bundle install --gemfile=site/Gemfile
	# - name: Build project site
	# run: sbt ++$SCALA_VERSION site/makeMicrosite

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