Support multi-line artifact and version

[exoego]

Closes #2099

Multi-line artifact and its version now will be updated.
This could be helpful specially for Maven users, because dependencies in Maven are often declared like below:

<dependency>
    <groupId>commons-io</groupId>
    <artifactId>commons-io</artifactId>
    <version>2.6</version>
</dependency>

[exoego]

Note) This is added to keep the below test as-is.
sbt-scalafmt vs sbt-pgp.

    val original = """val scalafmt = "2.0.1"
                     |addSbtPlugin("com.jsuereth" % "sbt-pgp" % "2.0.1")
                     |""".stripMargin
    val expected = """val scalafmt = "2.0.7"
                     |addSbtPlugin("com.jsuereth" % "sbt-pgp" % "2.0.1")
                     |""".stripMargin

I think ignoring sbt is reasonable to avoid wrong match.

[codecov]

Codecov Report

Merging #2232 (3fbe150) into master (8d14763) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master    #2232   +/-   ##
=======================================
  Coverage   78.18%   78.18%           
=======================================
  Files         131      131           
  Lines        2251     2251           
  Branches       60       44   -16     
=======================================
  Hits         1760     1760           
  Misses        491      491           

Impacted Files	Coverage Δ
...a/org/scalasteward/core/edit/UpdateHeuristic.scala	98.80% <100.00%> (ø)

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[exoego]

I am going to merge this since the changes is good for maven users.
If any issues found later, I am happy to fix/revert.

[fthomas]

I had a look at some of the PRs that were created because of this PR. Some of them are "interesting":

• Update jcstress-core to 0.14 zio/zio-logging#337
• Update inject-app, inject-core, ... to 21.9.0 softwaremill/tapir#1515
• Update kind-projector to 0.13.2 scodec/scodec-bits#323
• Update scala3-library, ... to 3.0.2 optics-dev/Monocle#1212
• Update plexus-interpolation to 1.26 kelnos/tut-maven-plugin#34
• Update plexus-interpolation to 1.26 kelnos/mima-maven-plugin#42
• Update cats-effect-testing-scalatest to 1.3.0 iheartradio/thomas#546
• Update scalajs-dom_sjs1_2.12, ... to 1.2.0 Dwolla/fs2-aws#43

[exoego]

😮 Oh no...
I will check those results and consider improvements or simply revert.