sagemathgh-40573: bump libhomfly to 1.03

apart from adding pkg-config support, no difference with the previous
release

### 📝 Checklist

<!-- Put an `x` in all the boxes that apply. -->

- [x] The title is concise and informative.
- [x] The description explains in detail what this PR is about.
- [ ] I have linked a relevant issue or discussion.
- [ ] I have created tests covering the changes.
- [ ] I have updated the documentation and checked the documentation
preview.

### ⌛ Dependencies

<!-- List all open PRs that this PR logically depends on. For example,
-->
<!-- - sagemath#12345: short description why this is a dependency -->
<!-- - sagemath#34567: ... -->

URL: sagemath#40573
Reported by: Dima Pasechnik
Reviewer(s):

Author: Release Manager

build/pkgs/configure/checksums.ini

@@ -1,3 +1,3 @@
 tarball=configure-VERSION.tar.gz
-sha1=60867f7d62984944eca465d48e0fb31abde2841e
-sha256=4ec557fb0516afe91e097986429d4e1c65e035cee5b9a8f21b17d3c1db9212d7
+sha1=50224dd612068c835da967e914b90b586ef6a3a1
+sha256=f62827bcf6627e32b6c50488bdcf5ac9ba8f291396b24fc3f1a67fbca5d1d34c

build/pkgs/configure/package-version.txt

@@ -1 +1 @@
-858268b40010e5ed6da13488ad0f52cda4d1f70e
+506cc193894fb310ec43ac731ed75353e7c0e409

build/pkgs/libhomfly/checksums.ini

@@ -1,4 +1,4 @@
 tarball=libhomfly-VERSION.tar.gz
-sha1=a8a4d9fb5bfacdbacab32bb0c8ea6d21ad9f7e54
-sha256=f990d991d29a590c54b09eff68bc209c4cf2b8b12d945351688d2db8a0d30979
+sha1=c589fdf1aff0f3c470cc4ecd8c612c1ead8c71a0
+sha256=2a06e93cccd91d33ed9c345eba2e59b2ba175c11e454cf2029644a9364250871
 upstream_url=https://github.com/miguelmarco/libhomfly/releases/download/VERSION/libhomfly-VERSION.tar.gz

build/pkgs/libhomfly/package-version.txt

@@ -1 +1 @@
-1.02r6
+1.03