ci: add release please config

Author: twishabansal

.release-please-manifest.json

@@ -0,0 +1,3 @@
+{
+  "packages/toolbox-langchain": "0.1.0"
+}

release-please-config.json

@@ -0,0 +1,28 @@
+{
+    "packages": {
+      "packages/toolbox-core": {
+        "bump-minor-pre-major": true,
+        "bump-patch-for-minor-pre-major": true,
+        "component": "toolbox-core",
+        "extra-files": [
+          "src/toolbox_core/version.py"
+        ],
+        "release-type": "python",
+        "bootstrap-sha": "ac43090822fbf19a8920732e2ec3aa8b9c3130c1",
+        "include-component-in-tag": "false",
+        "include-v-in-tag": "false"
+      },
+      "packages/toolbox-langchain": {
+        "bump-minor-pre-major": true,
+        "bump-patch-for-minor-pre-major": true,
+        "component": "toolbox-langchain",
+        "extra-files": [
+          "src/toolbox_langchain/version.py"
+        ],
+        "release-type": "python",
+        "bootstrap-sha": "ac43090822fbf19a8920732e2ec3aa8b9c3130c1",
+        "include-component-in-tag": "false",
+        "include-v-in-tag": "false"
+      }
+    }
+}