gnu: python-rsa: Update to 4.9.1.

* gnu/packages/python-xyz.scm (python-rsa): Update to 4.9.1.
[build-system]: Switch to pyproject-build-system.
[arguments] <tests?>: Disable missing tests.
[native-inputs]: Add python-poetry-core.

Change-Id: I495b4e68aeb83e944f9f6902cfe6b77f6bdd0f10

gnu/packages/python-xyz.scm

@@ -20646,26 +20646,32 @@ text.")
 @code{boto} library.")
     (license license:asl2.0)))
 
+;; XXX: This project was archived by the owner on Apr 20, 2025. It is now
+;; read-only.  Consider to remove when starts failing to build and nothing
+;; depends on it.
 (define-public python-rsa
   (package
    (name "python-rsa")
-   (version "3.4.2")
+   (version "4.9.1")
    (source
     (origin
      (method url-fetch)
      (uri (pypi-uri "rsa" version))
      (sha256
-      (base32
-       "1dcxvszbikgzh99ybdc7jq0zb9wspy2ds8z9mjsqiyv3q884xpr5"))))
-   (build-system python-build-system)
+      (base32 "0xdfs3mhdb9wjpckj7i4zyv9sr82m7hk0mfkvw3lrnlpakdvzgg7"))))
+   (build-system pyproject-build-system)
+   (arguments
+    (list #:tests? #f))         ;tests are not included in PyPI archive
+   (native-inputs
+    (list python-poetry-core))
    (propagated-inputs
     (list python-pyasn1))
+   (home-page "https://stuvel.eu/rsa")
    (synopsis "Pure-Python RSA implementation")
    (description "Python-RSA is a pure-Python RSA implementation.  It supports
 encryption and decryption, signing and verifying signatures, and key
 generation according to PKCS#1 version 1.5.  It can be used as a Python
 library as well as on the command line.")
-   (home-page "https://stuvel.eu/rsa")
    (license license:asl2.0)))
 
 (define-public python-plumbum