build(deps): bump pyasn1 from 0.6.3 to 0.6.4 in /engine in the uv group across 1 directory (#7190)

Bumps the uv group with 1 update in the /engine directory:
[pyasn1](https://github.com/pyasn1/pyasn1).

Updates `pyasn1` from 0.6.3 to 0.6.4
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/pyasn1/pyasn1/releases">pyasn1's
releases</a>.</em></p>
<blockquote>
<h2>Release 0.6.4</h2>
<p>This is a security release.</p>
<ul>
<li>CVE-2026-59885 (GHSA-8ppf-4f7h-5ppj): Fixed quadratic time
complexity in the OBJECT IDENTIFIER and RELATIVE-OID decoders. A small
crafted substrate encoding many arcs could consume excessive CPU.</li>
<li>CVE-2026-59884 (GHSA-m4p7-r5rc-7g4j): Limited BER long-form tag IDs
to 20 octets (140 bits). Unbounded tag IDs allowed a crafted substrate
to consume excessive CPU and memory.</li>
<li>CVE-2026-59886 (GHSA-hm4w-wwcw-mr6r): Fixed excessive memory and CPU
consumption in <code>Real.__float__()</code> for values with large
base-10 exponents.</li>
<li>Pinned PyPI publish GitHub Action to an immutable commit.</li>
</ul>
<p>All changes are noted in the <a
href="https://github.com/pyasn1/pyasn1/blob/main/CHANGES.rst">CHANGELOG</a>.</p>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/pyasn1/pyasn1/blob/main/CHANGES.rst">pyasn1's
changelog</a>.</em></p>
<blockquote>
<h2>Revision 0.6.4, released 08-07-2026</h2>
<ul>
<li>CVE-2026-59885 (GHSA-8ppf-4f7h-5ppj): Fixed quadratic time
complexity in the OBJECT IDENTIFIER and RELATIVE-OID decoders.
A small crafted substrate encoding many arcs could consume
excessive CPU. Arcs are now accumulated in linear time; decoded
values are unchanged (thanks for reporting, tynus2)</li>
<li>CVE-2026-59884 (GHSA-m4p7-r5rc-7g4j): Limited BER long-form tag
IDs to 20 octets (140 bits), matching the OID arc limit introduced
in 0.6.2. Unbounded tag IDs allowed a crafted substrate to consume
excessive CPU and memory; longer tag IDs are now rejected with
PyAsn1Error. Also fixed Tag and TagSet repr() failing on huge tag
(thanks for reporting, mikeappsec)
IDs due to the integer-to-string conversion limit (Python 3.11+)</li>
<li>CVE-2026-59886 (GHSA-hm4w-wwcw-mr6r): Fixed excessive memory and
CPU consumption in Real.<strong>float</strong>() for values with large
base-10
exponents. Conversion no longer materializes huge intermediate
integers; values too large to represent as a Python float raise
OverflowError promptly, and prettyPrint() renders them as
'<!-- raw HTML omitted -->' as before. Also fixed base-10 mantissa
normalization
to use exact integer arithmetic; mantissas larger than 2**53
could previously lose precision through float division
(thanks for reporting, gvozdila)</li>
<li>Pinned PyPI publish GitHub Action to an immutable commit
[pr <a
href="https://redirect.github.com/pyasn1/pyasn1/issues/113">#113</a>](<a
href="https://redirect.github.com/pyasn1/pyasn1/pull/113">pyasn1/pyasn1#113</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/pyasn1/pyasn1/commit/72e4803405816c371ed3b2cb4be181c47f038406"><code>72e4803</code></a>
Prepare release 0.6.4</li>
<li><a
href="https://github.com/pyasn1/pyasn1/commit/0c19eeb853731db1c717ff125ea001a1e558332d"><code>0c19eeb</code></a>
Pin PyPI publish action to immutable commit (<a
href="https://redirect.github.com/pyasn1/pyasn1/issues/113">#113</a>)</li>
<li><a
href="https://github.com/pyasn1/pyasn1/commit/45bdb19eb7df4b3780fe9c912c63e99bffc39dd9"><code>45bdb19</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/pyasn1/pyasn1/commit/628e36ecbb5277a3f01572ce418ef54271b165a5"><code>628e36e</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/pyasn1/pyasn1/commit/e60c691cb91addb8fcefa2f537e85ede6fb1e886"><code>e60c691</code></a>
Merge commit from fork</li>
<li>See full diff in <a
href="https://github.com/pyasn1/pyasn1/compare/v0.6.3...v0.6.4">compare
view</a></li>
</ul>
</details>
<br />


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engine/uv.lock

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