Bump smile-core.version from 4.4.0 to 6.1.1

Bumps `smile-core.version` from 4.4.0 to 6.1.1.

Updates `com.github.haifengl:smile-core` from 4.4.0 to 6.1.1
- [Release notes](https://github.com/haifengl/smile/releases)
- [Commits](haifengl/smile@v4.4.0...v6.1.1)

Updates `com.github.haifengl:smile-plot` from 4.4.0 to 6.1.1
- [Release notes](https://github.com/haifengl/smile/releases)
- [Commits](haifengl/smile@v4.4.0...v6.1.1)

---
updated-dependencies:
- dependency-name: com.github.haifengl:smile-core
  dependency-version: 6.1.1
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: com.github.haifengl:smile-plot
  dependency-version: 6.1.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pom.xml

@@ -154,7 +154,7 @@
 		<sciview.version>0.4.0</sciview.version>
 		<smile.version>4.4.0</smile.version>
 		<smile-base.version>${smile.version}</smile-base.version>
-		<smile-core.version>${smile.version}</smile-core.version>
+		<smile-core.version>6.1.1</smile-core.version>
 		<smile-plot.version>${smile.version}</smile-plot.version>
 
 		<!-- NB: Deploy releases to the SciJava Maven repository. -->