update script to use releases (#232)

also do a shallow clone, we dont need history of all deps -- just the
most recent one

Author: salarkhan

deps/build-deps-linux.sh

@@ -26,7 +26,7 @@ rm -rf aom
 rm -rf libavif
 
 if [ ! -d "$SRCDIR" ]; then
-    git clone https://github.com/discord/lilliput-dep-source "$SRCDIR"
+    git clone --depth 1 --branch 1.0.0 https://github.com/discord/lilliput-dep-source "$SRCDIR"
 fi
 
 echo '\n--------------------'

deps/build-deps-osx.sh

@@ -52,7 +52,7 @@ rm -rf aom
 rm -rf libavif
 
 if [ ! -d "$SRCDIR" ]; then
-    git clone https://github.com/discord/lilliput-dep-source "$SRCDIR"
+    git clone --depth 1 --branch 1.0.0 https://github.com/discord/lilliput-dep-source "$SRCDIR"
 fi
 
 echo '\n--------------------'