refactor: enable gofmt linter and fix all issues

- also rewrite 'interface{}' as 'any'

taskfile/precondition_test.go

@@ -12,8 +12,8 @@ import (
 func TestPreconditionParse(t *testing.T) {
 	tests := []struct {
 		content  string
-		v        interface{}
-		expected interface{}
+		v        any
+		expected any
 	}{
 		{
 			"test -f foo.txt",

taskfile/taskfile_test.go

@@ -24,8 +24,8 @@ vars:
 	)
 	tests := []struct {
 		content  string
-		v        interface{}
-		expected interface{}
+		v        any
+		expected any
 	}{
 		{
 			yamlCmd,
@@ -38,8 +38,8 @@ vars:
 			&taskfile.Cmd{Task: "another-task", Vars: &taskfile.Vars{
 				Keys: []string{"PARAM1", "PARAM2"},
 				Mapping: map[string]taskfile.Var{
-					"PARAM1": taskfile.Var{Static: "VALUE1"},
-					"PARAM2": taskfile.Var{Static: "VALUE2"},
+					"PARAM1": {Static: "VALUE1"},
+					"PARAM2": {Static: "VALUE2"},
 				},
 			}},
 		},
@@ -54,7 +54,7 @@ vars:
 			&taskfile.Cmd{Task: "some_task", Vars: &taskfile.Vars{
 				Keys: []string{"PARAM1"},
 				Mapping: map[string]taskfile.Var{
-					"PARAM1": taskfile.Var{Static: "var"},
+					"PARAM1": {Static: "var"},
 				},
 			}, Defer: true},
 		},
@@ -69,8 +69,8 @@ vars:
 			&taskfile.Dep{Task: "another-task", Vars: &taskfile.Vars{
 				Keys: []string{"PARAM1", "PARAM2"},
 				Mapping: map[string]taskfile.Var{
-					"PARAM1": taskfile.Var{Static: "VALUE1"},
-					"PARAM2": taskfile.Var{Static: "VALUE2"},
+					"PARAM1": {Static: "VALUE1"},
+					"PARAM2": {Static: "VALUE2"},
 				},
 			}},
 		},

taskfile/var.go

@@ -82,8 +82,8 @@ func (vs *Vars) Range(yield func(key string, value Var) error) error {
 
 // ToCacheMap converts Vars to a map containing only the static
 // variables
-func (vs *Vars) ToCacheMap() (m map[string]interface{}) {
-	m = make(map[string]interface{}, vs.Len())
+func (vs *Vars) ToCacheMap() (m map[string]any) {
+	m = make(map[string]any, vs.Len())
 	_ = vs.Range(func(k string, v Var) error {
 		if v.Sh != "" {
 			// Dynamic variable is not yet resolved; trigger
@@ -112,7 +112,7 @@ func (vs *Vars) Len() int {
 // Var represents either a static or dynamic variable.
 type Var struct {
 	Static string
-	Live   interface{}
+	Live   any
 	Sh     string
 	Dir    string
 }