fix(deps): update module github.com/sylabs/sif/v2 to v2.20.0

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

go.mod

@@ -35,7 +35,7 @@ require (
 	github.com/sigstore/sigstore v1.8.10
 	github.com/sirupsen/logrus v1.9.3
 	github.com/stretchr/testify v1.9.0
-	github.com/sylabs/sif/v2 v2.19.1
+	github.com/sylabs/sif/v2 v2.20.0
 	github.com/ulikunitz/xz v0.5.12
 	github.com/vbatts/tar-split v0.11.6
 	github.com/vbauerster/mpb/v8 v8.8.3

go.sum

@@ -333,8 +333,8 @@ github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO
 github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
 github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
 github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
-github.com/sylabs/sif/v2 v2.19.1 h1:1eeMmFc8elqJe60ZiWwXgL3gMheb0IP4GmNZ4q0IEA0=
-github.com/sylabs/sif/v2 v2.19.1/go.mod h1:U1SUhvl8X1JIxAylC0DYz1fa/Xba6EMZD1dGPGBH83E=
+github.com/sylabs/sif/v2 v2.20.0 h1:RfDHEltUrchZbp/XGcWaw3nRSbufoNWqvwmf91/Q2gI=
+github.com/sylabs/sif/v2 v2.20.0/go.mod h1:z6dq3B7QXK0pD71n15kAapven+gE+PZAIPOewBTNDpU=
 github.com/tchap/go-patricia/v2 v2.3.1 h1:6rQp39lgIYZ+MHmdEq4xzuk1t7OdC35z/xm0BGhTkes=
 github.com/tchap/go-patricia/v2 v2.3.1/go.mod h1:VZRHKAb53DLaG+nA9EaYYiaEx6YztwDlLElMsnSHD4k=
 github.com/titanous/rocacheck v0.0.0-20171023193734-afe73141d399 h1:e/5i7d4oYZ+C1wj2THlRK+oAhjeS/TRQwMfkIuet3w0=