Upgrade antonmedv/expr to expr-lang/expr (#6814)

* Upgrade antonmedv/expr to expr-lang/expr

The project has moved.  This also upgrades from 1.15.5 to 1.16.9.
The expr project lacks a changelog but tests pass and the changes don't
seem to change it much - but there were a lot of changes.

Signed-off-by: Kevin Lyda <kevin@lyda.ie>

* Upgrade build image

In reviewing the build results I see the old build image was deprecated so
upgrading to something newer.

Signed-off-by: Kevin Lyda <kevin@lyda.ie>

---------

Signed-off-by: Kevin Lyda <kevin@lyda.ie>

plugin/view/README.md

@@ -93,13 +93,13 @@ Note that the regex pattern is enclosed in single quotes, and backslashes are es
 
 ## Expressions
 
-To evaluate expressions, *view* uses the antonmedv/expr package ( https://github.com/antonmedv/expr ).
+To evaluate expressions, *view* uses the expr-lang/expr package ( https://github.com/expr-lang/expr ).
 For example, an expression could look like:
 `(type() == 'A' && name() == 'example.com.') || client_ip() == '1.2.3.4'`.
 
 All expressions should be written to evaluate to a boolean value.
 
-See https://github.com/antonmedv/expr/blob/master/docs/Language-Definition.md as a detailed reference for valid syntax.
+See https://github.com/expr-lang/expr/blob/master/docs/Language-Definition.md as a detailed reference for valid syntax.
 
 ### Available Expression Functions
 

plugin/view/setup.go

@@ -9,7 +9,7 @@ import (
 	"github.com/coredns/coredns/plugin"
 	"github.com/coredns/coredns/plugin/pkg/expression"
 
-	"github.com/antonmedv/expr"
+	"github.com/expr-lang/expr"
 )
 
 func init() { plugin.Register("view", setup) }

plugin/view/view.go

@@ -7,8 +7,8 @@ import (
 	"github.com/coredns/coredns/plugin/pkg/expression"
 	"github.com/coredns/coredns/request"
 
-	"github.com/antonmedv/expr"
-	"github.com/antonmedv/expr/vm"
+	"github.com/expr-lang/expr"
+	"github.com/expr-lang/expr/vm"
 	"github.com/miekg/dns"
 )