chore: use hermit to install node, rust and protoc (#2766)

bin/activate-hermit.fish

@@ -0,0 +1,24 @@
+#!/usr/bin/env fish
+
+# This file must be sourced with "source bin/activate-hermit.fish" from Fish shell.
+# You cannot run it directly.
+#
+# THIS FILE IS GENERATED; DO NOT MODIFY
+
+if status is-interactive
+    set BIN_DIR (dirname (status --current-filename))
+
+    if "$BIN_DIR/hermit" noop > /dev/null
+        # Source the activation script generated by Hermit
+        "$BIN_DIR/hermit" activate "$BIN_DIR/.." | source
+
+        # Clear the command cache if applicable
+        functions -c > /dev/null 2>&1
+
+        # Display activation message
+        echo "Hermit environment $($HERMIT_ENV/bin/hermit env HERMIT_ENV) activated"
+    end
+else
+    echo "You must source this script: source $argv[0]" >&2
+    exit 33
+end