fix(license): always trim leading and trailing spaces for licenses

[DmitriyLewen]

Description

See #8094

example:
test pom.xml file:

    <licenses>
        <license>
            <name>
                Dual license consisting of the CDDL v1.1 and GPL v2
            </name>
            <url>https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html</url>
            <distribution>repo</distribution>
        </license>
    </licenses>

Before:

➜ trivy -q fs --scanners license /Users/dmitriy/work/tmp/8086/pom.xml -f json | grep '"Name"'
          "Name": "\n                Dual license consisting of the CDDL v1.1 and GPL v2\n            ",
          "Name": "CDDL-1.0",

After:

➜ ./trivy -q fs --scanners license /Users/dmitriy/work/tmp/8086/pom.xml -f json | grep '"Name"'
          "Name": "Dual license consisting of the CDDL v1.1 and GPL v2",
          "Name": "CDDL-1.0",

Related issues

• Close bug(license): trim leading and trailing spaces for licenses #8094

Checklist

• I've read the guidelines for contributing to this repository.
• I've followed the conventions in the PR title.
• I've added tests that prove my fix is effective or that my feature works.
• I've updated the documentation with the relevant information (if needed).
• I've added usage information (if the PR introduces new options)
• I've included a "before" and "after" example to the description (if the PR is a user interface change).