Merge bitcoin/bitcoin#27382: miniscript: explicit cast instead of comparing integers of different signs

9a54d88 miniscript: explicit cast instead of comparing integers of different signs (Antoine Poinsot)

Pull request description:

  Fixes #27381

ACKs for top commit:
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    ACK 9a54d88

Tree-SHA512: beba35ecf3325b3b0e87f3288af4522de455c2983f7f6dd64a34a1636e351afcd1e00d249dfe2b3cde4f65254d62b610daaebfbda4e4af76f1fef4dd168c631d

Author: fanquake

src/script/miniscript.h

@@ -1194,7 +1194,7 @@ struct Node {
                 case Fragment::OR_I:
                     return subs[0] || subs[1];
                 case Fragment::THRESH:
-                    return std::count(subs.begin(), subs.end(), true) >= node.k;
+                    return static_cast<uint32_t>(std::count(subs.begin(), subs.end(), true)) >= node.k;
                 default: // wrappers
                     assert(subs.size() == 1);
                     return subs[0];