docs(examples): add temporal strftime examples

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Description of changes

Adding examples for TimestampValue and DateValue strftime methods.

I wanted to cover what I felt like were common usage patterns.

Issues closed

Resolves #10354

^^ I intend to keep adding more of these, but don't know it it's worthwhile to keep that issue open.

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I was going to add strftime examples for TimeValue, but admittedly, was running into difficulties here.

In [1]: from datetime import time

In [2]: from ibis.interactive import *

In [3]: t = ibis.memtable([time(10, 28, 3)], schema=ibis.Schema({"time_col": "time"}))

In [4]: t
Out[4]: 
┏━━━━━━━━━━┓
┃ time_col ┃
┡━━━━━━━━━━┩
│ time     │
├──────────┤
│ 10:28:03 │
└──────────┘

In [5]: t.time_col.strftime("%H:%M")
BinderException: Binder Error: No function matches the given name and argument types 'strftime(TIME, STRING_LITERAL)'. You might need to add explicit type casts.
        Candidate functions:
        strftime(DATE, VARCHAR) -> VARCHAR
        strftime(TIMESTAMP, VARCHAR) -> VARCHAR
        strftime(TIMESTAMP_NS, VARCHAR) -> VARCHAR
        strftime(VARCHAR, DATE) -> VARCHAR
        strftime(VARCHAR, TIMESTAMP) -> VARCHAR
        strftime(VARCHAR, TIMESTAMP_NS) -> VARCHAR
        strftime(TIMESTAMP WITH TIME ZONE, VARCHAR) -> VARCHAR

[cpcloud]

Looks great, just some minor suggestions.

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Looks great, just some minor suggestions.

Thank you! Removing the explicit schema does make it more concise. I added those suggestions and linted again.

[cpcloud]

The Trino failures are unrelated and already fixed upstream, merging!

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The Trino failures are unrelated and already fixed upstream, merging!

Thank you so much! Also, I appreciate the parenthesis fix.