Added webhook management functions

[johnyrahul]

Added Webhook management functions.

https://docs.unstract.com/llmwhisperer/llm_whisperer/apis/llm_whisperer_webhooks_manage/

[github-actions]

filepath	function	$$\textcolor{#23d18b}{\tt{passed}}$$	$$\textcolor{#f5f543}{\tt{skipped}}$$	SUBTOTAL
$$\textcolor{#f5f543}{\tt{tests/integration/client\_test.py}}$$	$$\textcolor{#f5f543}{\tt{test\_get\_usage\_info}}$$	$$\textcolor{#666666}{\tt{0}}$$	$$\textcolor{#f5f543}{\tt{1}}$$	$$\textcolor{#f5f543}{\tt{1}}$$
$$\textcolor{#f5f543}{\tt{tests/integration/client\_test.py}}$$	$$\textcolor{#f5f543}{\tt{test\_whisper}}$$	$$\textcolor{#666666}{\tt{0}}$$	$$\textcolor{#f5f543}{\tt{7}}$$	$$\textcolor{#f5f543}{\tt{7}}$$
$$\textcolor{#23d18b}{\tt{tests/integration/client\_v2\_test.py}}$$	$$\textcolor{#23d18b}{\tt{test\_get\_usage\_info}}$$	$$\textcolor{#23d18b}{\tt{1}}$$	$$\textcolor{#666666}{\tt{0}}$$	$$\textcolor{#23d18b}{\tt{1}}$$
$$\textcolor{#23d18b}{\tt{tests/integration/client\_v2\_test.py}}$$	$$\textcolor{#23d18b}{\tt{test\_whisper\_v2}}$$	$$\textcolor{#23d18b}{\tt{9}}$$	$$\textcolor{#666666}{\tt{0}}$$	$$\textcolor{#23d18b}{\tt{9}}$$
$$\textcolor{#23d18b}{\tt{tests/integration/client\_v2\_test.py}}$$	$$\textcolor{#23d18b}{\tt{test\_whisper\_v2\_error}}$$	$$\textcolor{#23d18b}{\tt{1}}$$	$$\textcolor{#666666}{\tt{0}}$$	$$\textcolor{#23d18b}{\tt{1}}$$
$$\textcolor{#23d18b}{\tt{tests/integration/client\_v2\_test.py}}$$	$$\textcolor{#23d18b}{\tt{test\_highlight}}$$	$$\textcolor{#23d18b}{\tt{1}}$$	$$\textcolor{#666666}{\tt{0}}$$	$$\textcolor{#23d18b}{\tt{1}}$$
$$\textcolor{#23d18b}{\tt{tests/integration/client\_v2\_test.py}}$$	$$\textcolor{#23d18b}{\tt{test\_whisper\_v2\_url\_in\_post}}$$	$$\textcolor{#23d18b}{\tt{4}}$$	$$\textcolor{#666666}{\tt{0}}$$	$$\textcolor{#23d18b}{\tt{4}}$$
$$\textcolor{#23d18b}{\tt{tests/integration/client\_v2\_test.py}}$$	$$\textcolor{#23d18b}{\tt{test\_webhook}}$$	$$\textcolor{#23d18b}{\tt{1}}$$	$$\textcolor{#666666}{\tt{0}}$$	$$\textcolor{#23d18b}{\tt{1}}$$
$$\textcolor{#23d18b}{\tt{tests/unit/client\_v2\_test.py}}$$	$$\textcolor{#23d18b}{\tt{test\_register\_webhook}}$$	$$\textcolor{#23d18b}{\tt{1}}$$	$$\textcolor{#666666}{\tt{0}}$$	$$\textcolor{#23d18b}{\tt{1}}$$
$$\textcolor{#23d18b}{\tt{tests/unit/client\_v2\_test.py}}$$	$$\textcolor{#23d18b}{\tt{test\_get\_webhook\_details}}$$	$$\textcolor{#23d18b}{\tt{1}}$$	$$\textcolor{#666666}{\tt{0}}$$	$$\textcolor{#23d18b}{\tt{1}}$$
$$\textcolor{#23d18b}{\tt{tests/utils\_test.py}}$$	$$\textcolor{#23d18b}{\tt{test\_redact\_key\_normal}}$$	$$\textcolor{#23d18b}{\tt{1}}$$	$$\textcolor{#666666}{\tt{0}}$$	$$\textcolor{#23d18b}{\tt{1}}$$
$$\textcolor{#23d18b}{\tt{tests/utils\_test.py}}$$	$$\textcolor{#23d18b}{\tt{test\_redact\_key\_different\_reveal\_length}}$$	$$\textcolor{#23d18b}{\tt{1}}$$	$$\textcolor{#666666}{\tt{0}}$$	$$\textcolor{#23d18b}{\tt{1}}$$
$$\textcolor{#23d18b}{\tt{tests/utils\_test.py}}$$	$$\textcolor{#23d18b}{\tt{test\_redact\_key\_non\_string\_input}}$$	$$\textcolor{#23d18b}{\tt{1}}$$	$$\textcolor{#666666}{\tt{0}}$$	$$\textcolor{#23d18b}{\tt{1}}$$
$$\textcolor{#f5f543}{\tt{TOTAL}}$$		$$\textcolor{#23d18b}{\tt{22}}$$	$$\textcolor{#f5f543}{\tt{8}}$$	$$\textcolor{#f5f543}{\tt{30}}$$