chore: do not use caret in version specifier

.c8rc.json

@@ -1,9 +1,9 @@
 {
-  "clean": true,
-  "check-coverage": true,
-  "all": true,
-  "temp-directory": "./coverage/.tmp",
-  "reporter": ["text-summary", "html"],
-  "include": ["lib/**/*.js", "lib/*.js"],
-  "lines": 85
+    "clean": true,
+    "check-coverage": true,
+    "all": true,
+    "temp-directory": "./coverage/.tmp",
+    "reporter": ["text-summary", "html"],
+    "include": ["lib/**/*.js", "lib/*.js"],
+    "lines": 85
 }

.ncurc.js

@@ -2,8 +2,6 @@ module.exports = {
     upgrade: true,
     reject: [
         // API changes break existing tests
-        'proxy',
-        // ESM
-        'chai'
+        'proxy'
     ]
 };

package.json

@@ -25,8 +25,8 @@
     "devDependencies": {
         "@aws-sdk/client-ses": "3.484.0",
         "bunyan": "1.8.15",
-        "c8": "^8.0.1",
-        "eslint": "^8.56.0",
+        "c8": "8.0.1",
+        "eslint": "8.56.0",
         "eslint-config-nodemailer": "1.2.0",
         "eslint-config-prettier": "9.1.0",
         "libbase64": "1.2.1",