use equalfold in filter equals checks (#2995)

Because it's nifty.

-----

#### Type of change

- [x] 🧹 Tech Debt/Cleanup

src/internal/operations/backup_integration_test.go

@@ -1098,7 +1098,6 @@ func (suite *BackupOpIntegrationSuite) TestBackup_Run_exchangeIncrementals() {
 	}
 	for _, test := range table {
 		suite.Run(test.name, func() {
-			fmt.Printf("\n-----\ntest %+v\n-----\n", test.name)
 			var (
 				t     = suite.T()
 				incMB = evmock.NewBus()

src/pkg/filters/filters.go

@@ -444,7 +444,7 @@ func (f Filter) Compare(input string) bool {
 
 // true if t == i
 func equals(target, input string) bool {
-	return target == input
+	return strings.EqualFold(target, input)
 }
 
 // true if t > i
@@ -531,7 +531,7 @@ func pathSuffix(target, input string) bool {
 // The input is assumed to be the complete path that may
 // match the target.
 func pathEquals(target, input string) bool {
-	return normPathElem(input) == target
+	return strings.EqualFold(normPathElem(input), target)
 }
 
 // ----------------------------------------------------------------------------------------------------