fix: remove --user flag in python generate scripts

bdk-python/scripts/generate-macos-arm64.sh

@@ -2,7 +2,7 @@
 
 set -euo pipefail
 python3 --version
-pip install --user -r requirements.txt
+pip install -r requirements.txt
 
 echo "Generating bdk.py..."
 cd ../bdk-ffi/

bdk-python/scripts/generate-macos-x86_64.sh

@@ -2,7 +2,7 @@
 
 set -euo pipefail
 python3 --version
-pip install --user -r requirements.txt
+pip install -r requirements.txt
 
 echo "Generating bdk.py..."
 cd ../bdk-ffi/

bdk-python/scripts/generate-windows.sh

@@ -2,7 +2,7 @@
 
 set -euo pipefail
 python3 --version
-pip install --user -r requirements.txt
+pip install -r requirements.txt
 
 echo "Generating bdk.py..."
 cd ../bdk-ffi/