ci: hyperbole should import requests only when needed

.github/workflows/master.yml

@@ -29,7 +29,6 @@ jobs:
 
       - name: Run build script
         run: |
-          pip install requests
           export HY_APP_PLATFORMS=$(sed 's/\r$//' platforms.txt | awk '!/^#/ && !/^$/' | paste -sd ",")
           python hyperbole.py build -r
 

.github/workflows/release.yml

@@ -28,7 +28,6 @@ jobs:
 
       - name: Run build script
         run: |
-          pip install requests
           export HY_APP_PLATFORMS=$(sed 's/\r$//' platforms.txt | awk '!/^#/ && !/^$/' | paste -sd ",")
           python hyperbole.py build -r
 
@@ -46,4 +45,5 @@ jobs:
       - name: Publish to API
         run: |
           export HY_API_POST_KEY=${{ secrets.HY2_API_POST_KEY }}
+          pip install requests
           python hyperbole.py publish

hyperbole.py

@@ -8,7 +8,6 @@ import sys
 import subprocess
 import datetime
 import shutil
-import requests
 
 # Hyperbole is the official build script for Hysteria.
 # Available environment variables for controlling the build:
@@ -348,6 +347,8 @@ def cmd_test(module=None):
 
 
 def cmd_publish(urgent=False):
+    import requests
+
     if not check_build_env():
         return