CI: Fix release artifact build

`dhall` crate pulls in `reqwest` dependency, which requires OpenSSL in
some platforms.

Author: tesaguri

.github/workflows/cicd.yml

@@ -117,13 +117,13 @@ jobs:
     strategy:
       matrix:
         target:
-          - x86_64-unknown-linux-musl
+          - x86_64-unknown-linux-gnu
           - armv7-unknown-linux-gnueabihf
           - x86_64-apple-darwin
           - x86_64-pc-windows-msvc
           - x86_64-unknown-freebsd
         include:
-          - target: x86_64-unknown-linux-musl
+          - target: x86_64-unknown-linux-gnu
             os: ubuntu-latest
           - target: armv7-unknown-linux-gnueabihf
             os: ubuntu-latest
@@ -137,9 +137,9 @@ jobs:
             use_cross: true
     steps:
       - uses: actions/checkout@v2
-      - name: Install packages (x86_64-unknown-linux-musl)
-        if: matrix.target == 'x86_64-unknown-linux-musl'
-        run: sudo apt-get install libsqlite3-dev musl-tools
+      - name: Install packages (x86_64-unknown-linux-gnu)
+        if: matrix.target == 'x86_64-unknown-linux-gnu'
+        run: sudo apt-get install libsqlite3-dev libssl-dev
       - name: Install packages (Windows)
         if: runner.os == 'Windows'
         run: vcpkg install sqlite3:x64-windows

docker/armv7-unknown-linux-gnueabihf/Dockerfile

@@ -2,4 +2,7 @@ FROM rustembedded/cross:armv7-unknown-linux-gnueabihf-0.2.1
 
 RUN dpkg --add-architecture armhf && \
     apt-get update && \
-    apt-get install --assume-yes libsqlite3-dev libsqlite3-dev:armhf
+    apt-get install --assume-yes libsqlite3-dev libsqlite3-dev:armhf libssl-dev:armhf
+
+ENV PKG_CONFIG_ALLOW_CROSS_armv7_unknown_linux_gnueabihf=1 \
+    PKG_CONFIG_PATH_armv7_unknown_linux_gnueabihf='/usr/lib/arm-linux-gnueabihf/pkgconfig'