Update package version to 2.7.3

pkg.info

@@ -1,9 +1,25 @@
 name: expat
 description: XML parsing library
-version: 2.7.2
+version: 2.7.3
+revision: 1
 url: https://libexpat.github.io/
 license: MIT
 architecture: any
-depends: ["glibc"]
-make_depends: ["bash","binutils","coreutils","gawk","gcc","glibc","grep","make","sed"]
 type: source
+depends:
+  - glibc
+make_depends:
+  - bash
+  - binutils
+  - coreutils
+  - gawk
+  - gcc
+  - glibc
+  - grep
+  - make
+  - sed
+downloads:
+  - url: https://github.com/libexpat/libexpat/releases/download/R_${BPM_PKG_VERSION//./_}/expat-${BPM_PKG_VERSION}.tar.gz
+    extract_to_bpm_source: true
+    extract_strip_components: 1
+    checksum: 821ac9710d2c073eaf13e1b1895a9c9aa66c1157a99635c639fbff65cdbdd732