Update release scripts (#165)

Author: rogebrd

.github/workflows/nuget_upload.yml

@@ -22,4 +22,4 @@ jobs:
       - name: Pack
         run: nuget pack dropbox-sdk-dotnet\Dropbox.Api\Dropbox.Api.nuspec
       - name: Publish
-        run: nuget push *.nupkg -ApiKey ${{ secrets.NUGET_TOKEN }}
+        run: nuget push *.nupkg -ApiKey=${{ secrets.NUGET_TOKEN }}

scripts/release_note_generator.sh

@@ -5,5 +5,5 @@ echo "Getting commit history since $last_version"
 num_commits=$(git rev-list --count $last_version..HEAD)
 echo "Found $num_commits commits since last revision"
 git_log=$(git log -n $num_commits --pretty="format:* %s %n")
-linked_log=$(echo "Release Notes: \n\n$git_log" | sed -e 's/#\([0-9]*\)/[#\1](github.com\/dropbox\/dropbox-sdk-dotnet\/pull\/\1)/g')
+linked_log=$(echo "Release Notes: \n\n$git_log" | sed -e 's/#\([0-9]*\)/[#\1](https:\/\/github.com\/dropbox\/dropbox-sdk-dotnet\/pull\/\1)/g')
 echo "\n\n$linked_log"