kubetail: upgrade to 0.13.0

Signed-off-by: kubetail-bot <bot@kubetail.com>

Author: kubetail-bot

devel/kubetail/Portfile

@@ -3,7 +3,7 @@
 PortSystem          1.0
 PortGroup           golang 1.0
 
-go.setup            github.com/kubetail-org/kubetail 0.12.2 cli/v
+go.setup            github.com/kubetail-org/kubetail 0.13.0 cli/v
 github.tarball_from releases
 revision            0
 
@@ -23,9 +23,9 @@ long_description    Kubetail is a general-purpose logging tool for Kubernetes, o
                     terminal.
 
 checksums           ${distname}${extract.suffix} \
-                    rmd160  ace5ea691b728d4d6f508a914c3a29487809325b \
-                    sha256  b39ed3446662d875a0d998cd510964c938ecc3fd873d52123d2fe5d2bf862745 \
-                    size    20821389
+                    rmd160  1b2ff320773ec72725baeefe61810c9fdd51c4e5 \
+                    sha256  155dd8e2956ab2a576bc950ed1bb80d524983afc6ceeab76cfc4c5976242bc79 \
+                    size    20863240
 
 build.env-append GO111MODULE=on \
                  GOWORK=off