downloads: upgrade bzip2 to 1.0.8

Contains a security fix.

Author: indygreg

pythonbuild/downloads.py

@@ -20,10 +20,10 @@
         "version": "2.32",
     },
     "bzip2": {
-        "url": "https://ftp.sunet.se/mirror/archive/ftp.sunet.se/pub/Linux/distributions/bifrost/download/src/bzip2-1.0.6.tar.gz",
-        "size": 782025,
-        "sha256": "a2848f34fcd5d6cf47def00461fcb528a0484d8edef8208d6d2e2909dc61d9cd",
-        "version": "1.0.6",
+        'url': 'https://sourceware.org/pub/bzip2/bzip2-1.0.8.tar.gz',
+        "size": 810029,
+        "sha256": "ab5a03176ee106d3f0fa90e381da478ddae405918153cca248e682cd0c4a2269",
+        "version": "1.0.8",
         "library_names": ["bz2"],
         "licenses": ["bzip2-1.0.6"],
         "license_file": "LICENSE.bzip2.txt",