linux pkgs: disable vcs stamping

it seems to create build issues since go 1.18.1.

I need to investigate better

Signed-off-by: Nicola Murino <nicola.murino@gmail.com>

.github/workflows/development.yml

@@ -416,7 +416,7 @@ jobs:
             then
               export GOARM=7
             fi
-            go build -trimpath -ldflags "-s -w -X github.com/drakkan/sftpgo/v2/version.commit=`git describe --always --dirty` -X github.com/drakkan/sftpgo/v2/version.date=`date -u +%FT%TZ`" -o sftpgo
+            go build -buildvcs=false -trimpath -ldflags "-s -w -X github.com/drakkan/sftpgo/v2/version.commit=`git describe --always --dirty` -X github.com/drakkan/sftpgo/v2/version.date=`date -u +%FT%TZ`" -o sftpgo
             mkdir -p output/{init,bash_completion,zsh_completion}
             cp sftpgo.json output/
             cp -r templates output/

.github/workflows/release.yml

@@ -350,7 +350,7 @@ jobs:
             tar -C /usr/local -xzf go.tar.gz
           run: |
             export PATH=$PATH:/usr/local/go/bin
-            go build -trimpath -ldflags "-s -w -X github.com/drakkan/sftpgo/v2/version.commit=`git describe --always --dirty` -X github.com/drakkan/sftpgo/v2/version.date=`date -u +%FT%TZ`" -o sftpgo
+            go build -buildvcs=false -trimpath -ldflags "-s -w -X github.com/drakkan/sftpgo/v2/version.commit=`git describe --always --dirty` -X github.com/drakkan/sftpgo/v2/version.date=`date -u +%FT%TZ`" -o sftpgo
             mkdir -p output/{init,sqlite,bash_completion,zsh_completion}
             echo "For documentation please take a look here:" > output/README.txt
             echo "" >> output/README.txt