CI: Install mysql-client version 5.7 for os_x job

Current version has issues
( Homebrew/homebrew-core#130258 )

Also adjust openssl paths as older version (1.1) of that
is the dependency for the 5.7 mysql-client

See osdn #48016

Signed-off-by: Marko Lindqvist <cazfi74@gmail.com>

.github/workflows/ci.yml

@@ -77,7 +77,7 @@ jobs:
             sdl2_mixer \
             sdl2_ttf \
             qt@6 \
-            mysql-client \
+            mysql-client@5.7 \
             postgresql \
             unixodbc
       - name: build

scripts/ci-build.sh

@@ -56,9 +56,9 @@ ninja install
 "os_x")
 # gcc is an alias for clang on OS X
 
-export PATH="$(brew --prefix llvm)/bin:$(brew --prefix gettext)/bin:$(brew --prefix icu4c)/bin:$(brew --prefix qt@6)/bin:$(brew --prefix mysql-client)/bin:$PATH"
-export CPPFLAGS="-I$(brew --prefix gettext)/include -I$(brew --prefix icu4c)/include -I$(brew --prefix qt@6)/include -I$(brew --prefix readline)/include -I$(brew --prefix unixodbc)/include"
-export LDFLAGS="-L$(brew --prefix gettext)/lib -L$(brew --prefix icu4c)/lib -L$(brew --prefix qt@6)/lib -L$(brew --prefix readline)/lib -L$(brew --prefix unixodbc)/lib"
+export PATH="$(brew --prefix llvm)/bin:$(brew --prefix gettext)/bin:$(brew --prefix icu4c)/bin:$(brew --prefix qt@6)/bin:$(brew --prefix mysql-client@5.7)/bin:$PATH"
+export CPPFLAGS="-I$(brew --prefix gettext)/include -I$(brew --prefix icu4c)/include -I$(brew --prefix qt@6)/include -I$(brew --prefix readline)/include -I$(brew --prefix unixodbc)/include -I$(brew --prefix mysql-client@5.7)/include -I$(brew --prefix openssl@1.1)/include"
+export LDFLAGS="-L$(brew --prefix gettext)/lib -L$(brew --prefix icu4c)/lib -L$(brew --prefix qt@6)/lib -L$(brew --prefix readline)/lib -L$(brew --prefix unixodbc)/lib -L$(brew --prefix mysql-client@5.7)/lib -L$(brew --prefix openssl@1.1)/lib"
 export PKG_CONFIG_PATH="$(brew --prefix icu4c)/lib/pkgconfig"
 
 export MOCCMD=$(find /usr/local/Cellar/qt -name "moc" | head -n 1)