0.21.0

Changes

• Make SHA256 the default HashAlgorithm
• Use java.nio.file instead of java.io
• Use Testcontainers for tests
• Use @TempDir and don't create files inside build directory
• Properly close resources
• Update dependency versions
• Use AssertJ fluent assertions java library
• Change header value reading code to use enum constants and lambdas
• Remove use of Object in headers and store header value as rpm tag v…
• Use HTTPS for license URL
• Bump org.bouncycastle:bcprov-jdk18on from 1.77 to 1.78
• Add support for rpm embedded lua interpreter
• Fix scriptlet required dependency flags

Maven coordinates

<dependency>
  <groupId>org.eclipse.packager</groupId>
  <artifactId>packager-core</artifactId>
  <version>0.21.0</version>
</dependency>
<dependency>
  <groupId>org.eclipse.packager</groupId>
  <artifactId>packager-deb</artifactId>
  <version>0.21.0</version>
</dependency>
<dependency>
  <groupId>org.eclipse.packager</groupId>
  <artifactId>packager-rpm</artifactId>
  <version>0.21.0</version>
</dependency>