Add unzip to required build tools

When an extension declares `download-url-method:
["pre-packaged-binary", ...]`, PIE calls `setDistUrl(zip-url)` so
composer downloads and extracts the .so into the vendor dir.
composer's archive downloader probes for `/usr/bin/unzip` first.
When it isn't present, composer doesn't fall back to PHP's ZipArchive;
it falls back to git-cloning the source. The prebuilt dist is
silently discarded, the .so never lands in the vendor dir, and
`UnixBuild::prePackagedBinary` trips `ExtensionBinaryNotFound`
looking for it.

`php:X.Y-cli` Debian images don't ship `/usr/bin/unzip`, so this
hits any `pie install <pkg>` on a minimal container when the
extension publishes prebuilt binaries.

Adds `unzip` to `CheckAllBuildTools::buildToolsFactory()` alongside
the existing tools. Package name is `unzip` on apt/apk/dnf/yum/brew.
With `--auto-install-build-tools`, PIE installs it and the
prebuilt-binary lane works.

Caught while releasing iliaal/fastchart 1.1.1.

Author: iliaal

src/SelfManage/BuildTools/CheckAllBuildTools.php

@@ -70,6 +70,25 @@ public static function buildToolsFactory(): self
                     PackageManager::Brew->value => 'libtool',
                 ],
             ),
+            // Composer's archive downloader uses /usr/bin/unzip first
+            // and falls back to git-source-cloning when it isn't
+            // present (not to PHP's ZipArchive). Without unzip, a
+            // pre-packaged-binary dist URL is silently swapped for a
+            // git clone of the source tree and the .so the user paid
+            // for in download time is never extracted, surfacing as
+            // ExtensionBinaryNotFound when PIE's prePackagedBinary
+            // check looks for it in the vendor dir. Bare php:X.Y-cli
+            // Debian images do not ship /usr/bin/unzip.
+            new BinaryBuildToolFinder(
+                'unzip',
+                [
+                    PackageManager::Apt->value => 'unzip',
+                    PackageManager::Apk->value => 'unzip',
+                    PackageManager::Dnf->value => 'unzip',
+                    PackageManager::Yum->value => 'unzip',
+                    PackageManager::Brew->value => 'unzip',
+                ],
+            ),
             new PhpizeBuildToolFinder(
                 [
                     PackageManager::Apt->value => 'php-dev',