update devDeps, loosen constructor argument type

It's always allowed to use {objectMode:true}, even if the RType and/or
WType extend string or Buffer. Previously, this was being too strict
about requiring an encoding for strings (or no encoding for Buffers), but
there are cases where you want to consume strings/Buffers in ObjectMode.

.tshy/build.json

@@ -2,7 +2,6 @@
   "extends": "../tsconfig.json",
   "compilerOptions": {
     "rootDir": "../src",
-    "target": "es2022",
     "module": "nodenext",
     "moduleResolution": "nodenext"
   }

.tshy/commonjs.json

@@ -6,9 +6,9 @@
     "../src/**/*.tsx"
   ],
   "exclude": [
-    ".../src/**/*.mts"
+    "../src/**/*.mts"
   ],
   "compilerOptions": {
-    "outDir": "../.tshy-build-tmp/commonjs"
+    "outDir": "../.tshy-build/commonjs"
   }
 }

.tshy/esm.json

@@ -5,7 +5,8 @@
     "../src/**/*.mts",
     "../src/**/*.tsx"
   ],
+  "exclude": [],
   "compilerOptions": {
-    "outDir": "../.tshy-build-tmp/esm"
+    "outDir": "../.tshy-build/esm"
   }
 }