drop cache when path to uname changes

Fixes https://github.com/romkatv/gitstatus/issues/102.

internal/p10k.zsh

@@ -7034,11 +7034,11 @@ _p9k_must_init() {
     [[ $sig == $_p9k__param_sig ]] && return 1
     _p9k_deinit
   fi
-  _p9k__param_pat=$'v49\1'${ZSH_VERSION}$'\1'${ZSH_PATCHLEVEL}$'\1'
+  _p9k__param_pat=$'v50\1'${ZSH_VERSION}$'\1'${ZSH_PATCHLEVEL}$'\1'
   _p9k__param_pat+=$'${#parameters[(I)POWERLEVEL9K_*]}\1${(%):-%n%#}\1$GITSTATUS_LOG_LEVEL\1'
   _p9k__param_pat+=$'$GITSTATUS_ENABLE_LOGGING\1$GITSTATUS_DAEMON\1$GITSTATUS_NUM_THREADS\1'
   _p9k__param_pat+=$'$DEFAULT_USER\1${ZLE_RPROMPT_INDENT:-1}\1$P9K_SSH\1$__p9k_ksh_arrays'
-  _p9k__param_pat+=$'$__p9k_sh_glob\1$ITERM_SHELL_INTEGRATION_INSTALLED\1'
+  _p9k__param_pat+=$'$__p9k_sh_glob\1$ITERM_SHELL_INTEGRATION_INSTALLED\1$commands[uname]'
   _p9k__param_pat+=$'${PROMPT_EOL_MARK-%B%S%#%s%b}\1$LANG\1$LC_ALL\1$LC_CTYPE\1'
   _p9k__param_pat+=$'$functions[p10k-on-init]$functions[p10k-on-pre-prompt]\1'
   _p9k__param_pat+=$'$functions[p10k-on-post-widget]$functions[p10k-on-post-prompt]\1'