Add mpfr dependency for real_mpfi in meson.build

Fix for
[1/775] Linking target src/sage/rings/real_mpfi.cp311-win_amd64.pyd
FAILED: [code=1] src/sage/rings/real_mpfi.cp311-win_amd64.pyd
"cc"  -o src/sage/rings/real_mpfi.cp311-win_amd64.pyd src/sage/rings/real_mpfi.cp311-win_amd64.pyd.p/meson-generated_src_sage_rings_real_mpfi.pyx.c.obj "-Wl,--allow-shlib-undefined" "-Wl,-O1" "-shared" "-Wl,--start-group" "-Wl,--out-implib=src\sage\rings\real_mpfi.cp311-win_amd64.dll.a" "C:\Users\Tobia\AppData\Local\Programs\Python\Python311\python311.dll" "C:/rtools45/ucrt64/lib/libgmp.dll.a" "-lmpfi" "-lkernel32" "-luser32" "-lgdi32" "-lwinspool" "-lshell32" "-lole32" "-loleaut32" "-luuid" "-lcomdlg32" "-ladvapi32" "-Wl,--end-group"
C:/rtools45/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/15.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: src/sage/rings/real_mpfi.cp311-win_amd64.pyd.p/meson-generated_src_sage_rings_real_mpfi.pyx.c.obj:real_mpfi.pyx.:(.text+0x471b): undefined reference to `mpfr_equal_p

Author: tobiasdiez

src/sage/rings/meson.build

@@ -191,7 +191,7 @@ foreach name, pyx : extension_data
   elif name == 'real_double_element_gsl'
     deps += [gsl]
   elif name == 'real_mpfi'
-    deps += [mpfi]
+    deps += [mpfi, mpfr]
   elif name == 'real_mpfr'
     deps += [gmpy2, mpfr]
   elif name == 'tate_algebra_element'