Make it build with ghc-9.10 (#32)

And bump `filepath` dependency.

package.yaml

@@ -37,7 +37,7 @@ ghc-options:
   - -Wredundant-constraints
 
 dependencies:
-  - base >= 4.10 && < 4.20
+  - base >= 4.10 && < 4.21
   - text >= 0.7 && < 2.2
 
 library:
@@ -55,7 +55,7 @@ executables:
 
     dependencies:
       - directory >= 1.2.5.0 && < 1.4
-      - filepath >= 1.0 && < 1.5
+      - filepath >= 1.0 && < 1.6
       - process >= 1.0.1.1 && < 1.7
       - safe-exceptions
       - th-env >= 0.1.0.0 && < 0.2

with-utf8.cabal

@@ -48,7 +48,7 @@ library
       lib
   ghc-options: -Wall -Wcompat -Wincomplete-record-updates -Wincomplete-uni-patterns -Wredundant-constraints
   build-depends:
-      base >=4.10 && <4.20
+      base >=4.10 && <4.21
     , safe-exceptions ==0.1.*
     , text >=0.7 && <2.2
   default-language: Haskell2010
@@ -63,9 +63,9 @@ executable utf8-troubleshoot
   c-sources:
       app/utf8-troubleshoot/cbits/locale.c
   build-depends:
-      base >=4.10 && <4.20
+      base >=4.10 && <4.21
     , directory >=1.2.5.0 && <1.4
-    , filepath >=1.0 && <1.5
+    , filepath >=1.0 && <1.6
     , process >=1.0.1.1 && <1.7
     , safe-exceptions
     , text >=0.7 && <2.2
@@ -89,7 +89,7 @@ test-suite with-utf8-test
       tasty-discover:tasty-discover
   build-depends:
       HUnit
-    , base >=4.10 && <4.20
+    , base >=4.10 && <4.21
     , deepseq
     , hedgehog
     , safe-exceptions