Bump langchain-core from 0.3.79 to 0.3.80 (#343)

Bumps [langchain-core](https://github.com/langchain-ai/langchain) from 0.3.79 to 0.3.80.
- [Release notes](https://github.com/langchain-ai/langchain/releases)
- [Commits](langchain-ai/langchain@langchain-core==0.3.79...langchain-core==0.3.80)

---
updated-dependencies:
- dependency-name: langchain-core
  dependency-version: 0.3.80
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: John Lathouwers <john.lathouwers@oracle.com>

Author: dependabot[bot]

pyproject.toml

@@ -14,7 +14,7 @@ authors = [
 
 # Common dependencies that are always needed
 dependencies = [
-    "langchain-core==0.3.79",
+    "langchain-core==0.3.80",
     "httpx==0.28.1",
     "oracledb~=3.1",
     "plotly==6.3.1",