chore: update dfx to 0.28.0 (#1238)

Author: raymondk

.github/workflows/provision-darwin.sh

@@ -18,7 +18,7 @@ rm node.pkg
 
 # Install DFINITY SDK.
 curl --location --output install-dfx.sh "https://raw.githubusercontent.com/dfinity/sdk/master/public/install-dfxvm.sh"
-DFX_VERSION=${DFX_VERSION:=0.27.0} DFXVM_INIT_YES=true bash install-dfx.sh
+DFX_VERSION=${DFX_VERSION:=0.28.0} DFXVM_INIT_YES=true bash install-dfx.sh
 rm install-dfx.sh
 echo "$HOME/Library/Application Support/org.dfinity.dfx/bin" >> $GITHUB_PATH
 source "$HOME/Library/Application Support/org.dfinity.dfx/env"

.github/workflows/provision-linux.sh

@@ -13,7 +13,7 @@ rm nodesource_setup.sh
 
 # Install DFINITY SDK.
 wget --output-document install-dfx.sh "https://raw.githubusercontent.com/dfinity/sdk/master/public/install-dfxvm.sh"
-DFX_VERSION=${DFX_VERSION:=0.27.0} DFXVM_INIT_YES=true bash install-dfx.sh
+DFX_VERSION=${DFX_VERSION:=0.28.0} DFXVM_INIT_YES=true bash install-dfx.sh
 rm install-dfx.sh
 echo "$HOME/.local/share/dfx/bin" >>$GITHUB_PATH
 source "$HOME/.local/share/dfx/env"

motoko/send_http_get/src/send_http_get_backend/main.mo

@@ -55,6 +55,8 @@ actor {
         function = transform;
         context = Blob.fromArray([]);
       };
+      // Toggle this flag to switch between replicated and non-replicated http outcalls.
+      is_replicated = ?false;
     };
 
     //2. MAKE HTTPS REQUEST AND WAIT FOR RESPONSE, BUT MAKE SURE TO ADD CYCLES.