fix: support older shells in parallels smoke

(cherry picked from commit 8ce7c4f08b)

scripts/e2e/parallels-linux-smoke.sh

@@ -230,6 +230,7 @@ import json
 import os
 import re
 import sys
+from typing import Optional
 
 payload = json.loads(os.environ["PRL_VM_JSON"])
 requested = os.environ["REQUESTED_VM_NAME"].strip()
@@ -237,7 +238,7 @@ requested_lower = requested.lower()
 explicit = os.environ["VM_NAME_EXPLICIT"] == "1"
 names = [str(item.get("name", "")).strip() for item in payload if str(item.get("name", "")).strip()]
 
-def parse_ubuntu_version(name: str) -> tuple[int, ...] | None:
+def parse_ubuntu_version(name: str) -> Optional[tuple[int, ...]]:
     match = re.search(r"ubuntu\s+(\d+(?:\.\d+)*)", name, re.IGNORECASE)
     if not match:
         return None

scripts/e2e/parallels-npm-update-smoke.sh

@@ -196,13 +196,14 @@ import json
 import os
 import re
 import sys
+from typing import Optional
 
 payload = json.loads(os.environ["PRL_VM_JSON"])
 requested = os.environ["REQUESTED_VM_NAME"].strip()
 requested_lower = requested.lower()
 names = [str(item.get("name", "")).strip() for item in payload if str(item.get("name", "")).strip()]
 
-def parse_ubuntu_version(name: str) -> tuple[int, ...] | None:
+def parse_ubuntu_version(name: str) -> Optional[tuple[int, ...]]:
     match = re.search(r"ubuntu\s+(\d+(?:\.\d+)*)", name, re.IGNORECASE)
     if not match:
         return None

scripts/e2e/parallels-windows-smoke.sh

@@ -937,10 +937,11 @@ EOF
 }
 
 ensure_mingit_zip() {
-  local mingit_name mingit_url
-  mapfile -t mingit_meta < <(resolve_mingit_download)
-  mingit_name="${mingit_meta[0]}"
-  mingit_url="${mingit_meta[1]}"
+  local mingit_name mingit_url mingit_meta
+  mingit_meta="$(resolve_mingit_download)"
+  mingit_name="${mingit_meta%%$'\n'*}"
+  mingit_url="${mingit_meta#*$'\n'}"
+  [[ "$mingit_name" != "$mingit_url" ]] || die "failed to resolve MinGit download metadata"
   MINGIT_ZIP_NAME="$mingit_name"
   MINGIT_ZIP_PATH="$MAIN_TGZ_DIR/$mingit_name"
   if [[ ! -f "$MINGIT_ZIP_PATH" ]]; then