updating go mod

go.sum

@@ -227,8 +227,6 @@ github.com/imdario/mergo v0.3.13 h1:lFzP57bqS/wsqKssCGmtLAb8A0wKjLGrve2q3PPVcBk=
 github.com/imdario/mergo v0.3.13/go.mod h1:4lJ1jqUDcsbIECGy0RUJAXNIhg+6ocWgb1ALK2O4oXg=
 github.com/in-toto/archivista v0.1.3-0.20231214050507-e28a4170a9fe h1:SNafk19rV7gMlu3YyFuVkj/9vsXnMp6yrFMXDguT3fE=
 github.com/in-toto/archivista v0.1.3-0.20231214050507-e28a4170a9fe/go.mod h1:AJU7zhcITsaufiqYMFPLZM66/vwmHVQtZeC2/JFxw7w=
-github.com/in-toto/go-witness v0.1.18-0.20231214175634-5b5647c42b3c h1:BrnFYv8TI/uFBkB+WkY5npqveeNFG/fVf1k4Hd9LMl8=
-github.com/in-toto/go-witness v0.1.18-0.20231214175634-5b5647c42b3c/go.mod h1:uiBFKD3cykEKWZzzc5Vshy3YeKAwlafIm9/7NGx+Xck=
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
 github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
 github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 h1:BQSFePA1RWJOlocH6Fxy8MmwDt+yVQYULKfN0RoTN8A=