Merge bitcoin#23317: build: fix python detection post bitcoin#23182

a78137e build: fix python detection post bitcoin#23182 (fanquake)

Pull request description:

  bitcoin#23182 was broken. Fixup the changes, and add python3.11 as suggested. Was going to include this in other changes, but no point leaving this broken any longer.

ACKs for top commit:
  MarcoFalke:
    cr ACK a78137e
  hebasto:
    ACK a78137e, tested on Ubuntu Impish 21.10 running `./configure`:

Tree-SHA512: f77cbea76710617eaea85787351a707cc2dcfb7e5962fc6d63ea11e737ee96cb2a496a2a4bb5a147b37ba87b0428977d9295ea053e25417ea13f43137c959919

configure.ac

@@ -107,7 +107,7 @@ AC_PATH_TOOL(GCOV, gcov)
 AC_PATH_TOOL(LLVM_COV, llvm-cov)
 AC_PATH_PROG(LCOV, lcov)
 dnl Python 3.6 is specified in .python-version and should be used if available, see doc/dependencies.md
-AC_PATH_PROGS([PYTHON], [python3.6 python3.7 python3.8 python3.9, python3.10, python3 python])
+AC_PATH_PROGS([PYTHON], [python3.6 python3.7 python3.8 python3.9 python3.10 python3.11 python3 python])
 AC_PATH_PROG(GENHTML, genhtml)
 AC_PATH_PROG([GIT], [git])
 AC_PATH_PROG(CCACHE,ccache)