ci: pin pyopenssl for dbt 1.6 tests

Signed-off-by: nk <nkwork1234@gmail.com>

Author: nkwork9999

Makefile

@@ -49,7 +49,7 @@ install-dev-dbt-%:
 	$(MAKE) install-dev; \
 	if [ "$$version" = "1.6.0" ]; then \
 		echo "Applying overrides for dbt 1.6.0"; \
-		$(PIP) install 'pydantic>=2.0.0' 'google-cloud-bigquery==3.30.0' 'databricks-sdk==0.28.0' --reinstall; \
+		$(PIP) install 'pydantic>=2.0.0' 'google-cloud-bigquery==3.30.0' 'databricks-sdk==0.28.0' 'pyOpenSSL>=25.3.0' --reinstall; \
 	fi; \
 	if [ "$$version" = "1.7.0" ]; then \
 		echo "Applying overrides for dbt 1.7.0"; \