Chore: add trimmed geoip-only-cn-private.dat to package (#1233)

This size-reduced dat file only includes `cn` and `private` list, which is suitable for ROM/RAM insufficient devices.

Use it in V2Ray like this:

- `ext:geoip-only-cn-private.dat:cn`
- `ext:geoip-only-cn-private.dat:private`

.github/workflows/deb.yml

@@ -37,6 +37,7 @@ jobs:
       - name: Download geo files
         run: |
           wget -O release/config/geoip.dat "https://raw.githubusercontent.com/v2fly/geoip/release/geoip.dat"
+          wget -O release/config/geoip-only-cn-private.dat "https://raw.githubusercontent.com/v2fly/geoip/release/geoip-only-cn-private.dat"
           wget -O release/config/geosite.dat "https://raw.githubusercontent.com/v2fly/domain-list-community/release/dlc.dat"
 
       - name: Install build dependencies

.github/workflows/release.yml

@@ -123,6 +123,7 @@ jobs:
       - name: Download geo files
         run: |
           wget -O release/config/geoip.dat "https://raw.githubusercontent.com/v2fly/geoip/release/geoip.dat"
+          wget -O release/config/geoip-only-cn-private.dat "https://raw.githubusercontent.com/v2fly/geoip/release/geoip-only-cn-private.dat"
           wget -O release/config/geosite.dat "https://raw.githubusercontent.com/v2fly/domain-list-community/release/dlc.dat"
 
       - name: Prepare package