chore: Make extension generation script more generic

Author: tomasol

scripts/obelisk-generate-extensions.sh

@@ -3,4 +3,17 @@
 set -exuo pipefail
 cd "$(dirname "$0")/.."
 
-obelisk generate extensions activity_wasm activity-fly-http/wit/
+generate() {
+  local path="$1"
+  local component_type="$2"
+
+  find "$path" -maxdepth 1 -type d -exec test -d "{}/wit" \; -print | while read -r dir; do
+    echo "Updating $dir"
+    (
+      cd "$dir" || exit
+      obelisk generate extensions "$component_type" wit
+    )
+  done
+}
+
+generate "activity" "activity_wasm"