rekahsoft-gnu: Add docker-compose temporarily until fixed upstream

* rekahsoft-gnu/packages/python-xyz.scm: New variable docker-compose-fixed;
this is a variant of docker-compose that uses a pinned version of
python-pyyaml (<6.0), so it can successfully build (unlike current upstream).

rekahsoft-gnu/packages/python-xyz.scm

@@ -522,3 +522,21 @@ Amazon Web Services (AWS) API.")))
     (synopsis "Automatically sync your bank's data with ledger")
     (description "Automatically sync your bank's data with ledger")
     (license license:gpl3)))
+
+(define-public python-pyyaml-5
+  (package
+    (inherit python-pyyaml)
+    (version "5.4.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "PyYAML" version))
+       (sha256
+        (base32
+         "0pm440pmpvgv5rbbnm8hk4qga5a292kvlm1bh3x2nwr8pb5p8xv0"))))))
+
+;; TODO: this is a temporory fix after python-pyyaml was updated to 6.0, which is incompatible with docker-compose
+;; See: https://ci.guix.gnu.org/build/646008/details
+;; Note: docker-compose was rewritten in go, but has not yet been packaged for guix, and the python variant is the only one available
+(define-public docker-compose-fixed
+  ((package-input-rewriting `((,python-pyyaml . ,python-pyyaml-5))) (@ (gnu packages docker) docker-compose)))