Add a rule using the maven-enforcer plugin that requires Maven 3.6.3

[carlspring]

Task Description

We should add a Maven Enforcer rule that requires Maven 3.6.3 in order to build the code.

Tasks

The following tasks will need to be carried out:

• Add this rule in the strongbox-parent.
• Apply this rule to the strongbox project.
• Apply this rule to the strongbox-web-integration-tests.

Help

• Our chat
• Points of contact:
  • @carlspring
  • @sbespalov
  • @steve-todorov

[madhukarbharti]

@carlspring
@sbespalov
@steve-todorov May I work on this

[carlspring]

Hi @madhukarbharti ,

If you're taking part in the Grace Hopper Open Source Day later on today, then -- yes, please! If not, or if you're taking part in #Hacktoberfest, then please wait until the 2nd of October, before picking this up.

Please, feel free to join our chat channel for more details.

[ripudaman1320]

Hi @carlspring ,

Can i work on this issue as part of #Hacktoberfest.

Thanks!
-Ripu

[carlspring]

Okay, go for it.

[steve-todorov]

Posting this here so people can find it easy. (related to recent changes in strongbox/strongbox-parent#107)

• MVN Version < 3.6.3:

  [ERROR] Failed to execute goal org.apache.maven.plugins:maven-enforcer-plugin:3.0.0-M3:enforce (enforce-jdk-and-maven-versions) on project strongbox-parent: org.apache.maven.plugins.enforcer.RequireMavenVersion failed with message:
  [ERROR] 
  [ERROR]  You are using an unsupported Maven version! 
  [ERROR]  See https://strongbox.github.io/developer-guide/getting-started.html 
  [ERROR] 
  [ERROR] -> [Help 1]