Fix typos and misspellings

[seratch]

Detected typos using typos-cli (https://crates.io/crates/typos-cli). It detected "occured" in a string constant "handoff_occured" too, but I didn't change the part this time because it could be a minor breaking change.

Full outputs:

% typos .
error: `Supresses` should be `Suppresses`
  --> ./src/agents/function_schema.py:134:7
    |
134 |     # Supresses warnings about missing annotations for params
    |       ^^^^^^^^^
    |
error: `typ` should be `typo`, `type`
  --> ./src/agents/strict_schema.py:51:5
   |
51 |     typ = json_schema.get("type")
   |     ^^^
   |
error: `typ` should be `typo`, `type`
  --> ./src/agents/strict_schema.py:52:8
   |
52 |     if typ == "object" and "additionalProperties" not in json_schema:
   |        ^^^
   |
error: `typ` should be `typo`, `type`
  --> ./src/agents/strict_schema.py:55:9
   |
55 |         typ == "object"
   |         ^^^
   |
error: `occured` should be `occurred`
  --> ./src/agents/stream_events.py:34:18
   |
34 |         "handoff_occured",
   |                  ^^^^^^^
   |
error: `occured` should be `occurred`
  --> ./src/agents/_run_impl.py:723:69
    |
723 |                 event = RunItemStreamEvent(item=item, name="handoff_occured")
    |                                                                     ^^^^^^^
    |
error: `desitnation` should be `destination`
  --> ./src/agents/tracing/span_data.py:171:25
    |
171 |     Includes source and desitnation agents.
    |                         ^^^^^^^^^^^
    |
error: `exmaples` should be `examples`
  --> ./docs/scripts/translate_docs.py:71:145
   |
71 |         "* The term 'examples' must be code examples when the page mentions the code examples in the repo, it can be translated as either 'code exmaples' or 'sample code'.",
   |                                                                                                                                                 ^^^^^^^^
   |
error: `structed` should be `structured`
  --> ./tests/test_agent_hooks.py:227:16
    |
227 | async def test_structed_output_non_streamed_agent_hooks():
    |                ^^^^^^^^
    |
error: `structed` should be `structured`
  --> ./tests/test_agent_hooks.py:298:16
    |
298 | async def test_structed_output_streamed_agent_hooks():
    |                ^^^^^^^^
    |