refactor: s/when-let/when-let*/

The former is deprecated on Emacs 31 for the latter.

modules/lang/python/autoload/conda.el

@@ -11,7 +11,7 @@ can use a remote conda environment, including the corresponding remote python
 executable and packages."
   (interactive)
   (require 'conda)
-  (when-let (home (read-directory-name "Set conda home: " "~" nil nil conda-anaconda-home))
+  (when-let* ((home (read-directory-name "Set conda home: " "~" nil nil conda-anaconda-home)))
     (setq conda-anaconda-home home)
     (message "Successfully changed conda home to: %s" (abbreviate-file-name home))))
 

modules/lang/python/autoload/pyenv.el

@@ -18,7 +18,7 @@
 ;;;###autoload
 (defun +python-pyenv-read-version-from-file ()
   "Read pyenv version from .python-version file."
-  (when-let (root-path (projectile-locate-dominating-file default-directory ".python-version"))
+  (when-let* ((root-path (projectile-locate-dominating-file default-directory ".python-version")))
     (let* ((file-path (expand-file-name ".python-version" root-path))
            (version
             (with-temp-buffer

modules/lang/python/autoload/python.el

@@ -16,7 +16,7 @@ falling back on searching your PATH."
                (let ((bin (expand-file-name (concat conda-env-current-name "/" exe-root)
                                             (conda-env-default-location))))
                  (if (file-executable-p bin) bin))))
-            ((when-let (bin (projectile-locate-dominating-file default-directory exe-root))
+            ((when-let* ((bin (projectile-locate-dominating-file default-directory exe-root)))
                (setq-local doom-modeline-python-executable (expand-file-name exe-root bin))))
             ((executable-find exe))))))