feat: support version which contains underscore

[gshanbhag525]

eg.

=1087.v16065d268466, <1087.1089.v2f1b_9a_b_040e4

for org.jenkins-ci.plugins:credentials maven package

@knqyf263 please review.

[masahiro331]

#10

Add test

[masahiro331]

renovatebot/renovate#14648

[gshanbhag525]

used act https://github.com/nektos/act to verfiy workflow locally.

[knqyf263]

When version strings do not follow semantic versioning, a more complex set of rules is required. The Maven coordinate is split in tokens between dots ('.'), hyphens ('-'), underscore ('_') and transitions between digits and characters. The separator is recorded and will have effect on the order. A transition between digits and characters is equivalent to a hyphen. Empty tokens are replaced with "0". This gives a sequence of version numbers (numeric tokens) and version qualifiers (non-numeric tokens) with "." or "-" prefixes. Versions are expected to start with numbers.

https://maven.apache.org/pom.html#Dependency_Version_Requirement_Specification

[knqyf263]

Hmm, but it looks like Maven doesn't use underscore for separators, while dots and hyphens are treated as separators.

[knqyf263]

The unit tests also don't contain the cases using _.

[knqyf263]

I tested Maven.

$ mvn dependency:get -DgroupId=org.apache.maven -DartifactId=maven-artifact -Dversion=3.9.6
$ java -jar ~/.m2/repository/org/apache/maven/maven-artifact/3.9.6/maven-artifact-3.9.6.jar "1.0.ALPHA" "1.0-ALPHA"
Display parameters as parsed by Maven (in canonical form and as a list of tokens) and comparison result:
1. 1.0.ALPHA -> 1-alpha; tokens: [1, [alpha]]
   1.0.ALPHA == 1.0-ALPHA
2. 1.0-ALPHA -> 1-alpha; tokens: [1, [alpha]]
bash-4.2# java -jar ~/.m2/repository/org/apache/maven/maven-artifact/3.9.6/maven-artifact-3.9.6.jar "1.0_ALPHA" "1.0-ALPHA"
Display parameters as parsed by Maven (in canonical form and as a list of tokens) and comparison result:
1. 1.0_ALPHA -> 1-_alpha; tokens: [1, [_alpha]]
   1.0_ALPHA > 1.0-ALPHA
2. 1.0-ALPHA -> 1-alpha; tokens: [1, [alpha]]

In conclusion, the document is wrong. _ is interpreted as a character.