Bump dev.langchain4j:langchain4j-ollama from 1.5.0 to 1.6.0 (#828)

Bumps [dev.langchain4j:langchain4j-ollama](https://github.com/langchain4j/langchain4j) from 1.5.0 to 1.6.0.
- [Release notes](https://github.com/langchain4j/langchain4j/releases)
- [Commits](langchain4j/langchain4j@1.5.0...1.6.0)

---
updated-dependencies:
- dependency-name: dev.langchain4j:langchain4j-ollama
  dependency-version: 1.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pom.xml

@@ -96,7 +96,7 @@
         <!-- Experimental modules from langchain4j -->
         <version.dev.langchain4j.beta>1.5.0-beta11</version.dev.langchain4j.beta>
         <!-- Base langchain4j version -->
-        <version.dev.langchain4j>1.5.0</version.dev.langchain4j>
+        <version.dev.langchain4j>1.6.0</version.dev.langchain4j>
 
         <!-- Checkstyle props -->
         <checkstyle.failOnViolation>true</checkstyle.failOnViolation>