feat: Enable arbitrary input for ConnectorType enums (#304)

Use the openapi overlay file to add `x-speakeasy-unknown-values` to the
models for `SourceConnectorType` and `DestinationConnectorType`. This
allows the client to send any string outside of the enum definitions.
This provides forward compatibility in the client, we can create sources
with types that don't exist yet, without requiring a new client version.

Example:

This throws an error that the type is not in our enum. Now, it just
warns that this is an unknown value, but it's sent to the server anyway.

```
res = unstructured_client.sources.create_source(
    request={
        "create_source_connector": {
            "name": "My fancy new source",
            "type": "future_source_type",
            "config": {
                ...
                ...
            }
        }
    }
)
```

The change will take effect when the client regenerates and uses the new
overlay config. By setting
`gen.yaml` to `0.42.2`, the new client will propagate this version
change.

Author: awalker4

CHANGELOG.md

@@ -1,3 +1,21 @@
+## 0.42.2
+
+### Enhancements
+
+### Features
+* Enable arbitrary inputs for `SourceConnectorType` and `DestinationConnectorType`. This lets the client support new connector types without having to upgrade.
+
+### Fixes
+
+## 0.42.1
+
+### Enhancements
+
+### Features
+
+### Fixes
+* potential issue referencing models before declaration (commit by @mfbx9da4)
+
 ## 0.42.0
 
 ### Enhancements

gen.yaml

@@ -18,7 +18,7 @@ generation:
     generateNewTests: false
     skipResponseBodyAssertions: false
 python:
-  version: 0.42.1
+  version: 0.42.2
   additionalDependencies:
     dev:
       deepdiff: '>=6.0'

overlay_client.yaml

@@ -77,3 +77,9 @@ actions:
   - target: $["components"]["schemas"]["partition_parameters"]["properties"]["tracking_enabled"]
     description: Remove tracking_enabled from partition_parameters
     remove: true
+  - target: $["components"]["schemas"]["SourceConnectorType"]
+    update:
+      "x-speakeasy-unknown-values": "allow"
+  - target: $["components"]["schemas"]["DestinationConnectorType"]
+    update:
+      "x-speakeasy-unknown-values": "allow"