sagemathgh-38601: upgrade maxima to 5.47.0

    
followup to sagemath#35707 (make sage maxima 5.47-compatible)

fixes sagemath#38599


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- [x] The description explains in detail what this PR is about.
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### ⌛ Dependencies

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URL: sagemath#38601
Reported by: Dima Pasechnik
Reviewer(s): Kwankyu Lee

build/pkgs/maxima/checksums.ini

@@ -1,4 +1,4 @@
 tarball=maxima-VERSION.tar.gz
-sha1=1010594e6d6082bbd8efaac1b7756ec1721a4ed5
-sha256=7390f06b48da65c9033e8b2f629b978b90056454a54022db7de70e2225aa8b07
+sha1=fff13f4c010e6daab65fbc8a6895c2bd79925177
+sha256=9104021b24fd53e8c03a983509cb42e937a925e8c0c85c335d7709a14fd40f7a
 upstream_url=https://sourceforge.net/projects/maxima/files/Maxima-source/VERSION-source/maxima-VERSION.tar.gz/download

build/pkgs/maxima/package-version.txt

@@ -1 +1 @@
-5.46.0
+5.47.0