if requesting a tls certificate through acme fails, put any validatio…

…n error messages provided by the acme server in the error message

so users can understand what is going on. e.g. a CAA record that doesn't allow
a CA to sign a certificate. previously, the error message would just be "no
viable challenge type found", which doesn't help the user.

go.mod

@@ -4,7 +4,7 @@ go 1.20
 
 require (
 	github.com/mjl-/adns v0.0.0-20231009145311-e3834995f16c
-	github.com/mjl-/autocert v0.0.0-20231009155929-d0d48f2f0290
+	github.com/mjl-/autocert v0.0.0-20231013072455-c361ae2e20a6
 	github.com/mjl-/bstore v0.0.2
 	github.com/mjl-/sconf v0.0.5
 	github.com/mjl-/sherpa v0.6.6

go.sum

@@ -149,6 +149,8 @@ github.com/mjl-/adns v0.0.0-20231009145311-e3834995f16c h1:ZOr9KnCxfAwJWSeZn8Qs6
 github.com/mjl-/adns v0.0.0-20231009145311-e3834995f16c/go.mod h1:JWhGACVviyVUEra9Zv1M8JMkDVXArVt+AIXjTXtuwb4=
 github.com/mjl-/autocert v0.0.0-20231009155929-d0d48f2f0290 h1:0hCRSu8+XCZ2cSRW+ZtP/7L5wMYjOKFSQthoyj+4cN8=
 github.com/mjl-/autocert v0.0.0-20231009155929-d0d48f2f0290/go.mod h1:taMFU86abMxKLPV4Bynhv8enbYmS67b8LG80qZv2Qus=
+github.com/mjl-/autocert v0.0.0-20231013072455-c361ae2e20a6 h1:TEXyTghAN9pmV2ffzdnhmzkML08e1Z/oGywJ9eunbRI=
+github.com/mjl-/autocert v0.0.0-20231013072455-c361ae2e20a6/go.mod h1:taMFU86abMxKLPV4Bynhv8enbYmS67b8LG80qZv2Qus=
 github.com/mjl-/bstore v0.0.2 h1:4fdpIOY/+Dv1dBHyzdqa4PD90p8Mz86FeyRpI4qcehw=
 github.com/mjl-/bstore v0.0.2/go.mod h1:/cD25FNBaDfvL/plFRxI3Ba3E+wcB0XVOS8nJDqndg0=
 github.com/mjl-/sconf v0.0.5 h1:4CMUTENpSnaeP2g6RKtrs8udTxnJgjX2MCCovxGId6s=

vendor/modules.txt

@@ -17,7 +17,7 @@ github.com/mjl-/adns
 github.com/mjl-/adns/internal/bytealg
 github.com/mjl-/adns/internal/itoa
 github.com/mjl-/adns/internal/singleflight
-# github.com/mjl-/autocert v0.0.0-20231009155929-d0d48f2f0290
+# github.com/mjl-/autocert v0.0.0-20231013072455-c361ae2e20a6
 ## explicit; go 1.20
 github.com/mjl-/autocert
 # github.com/mjl-/bstore v0.0.2