Bump mysql2 from 2.1.0 to 3.9.8 in /react-express-mysql/backend

Bumps [mysql2](https://github.com/sidorares/node-mysql2) from 2.1.0 to 3.9.8.
- [Release notes](https://github.com/sidorares/node-mysql2/releases)
- [Changelog](https://github.com/sidorares/node-mysql2/blob/master/Changelog.md)
- [Commits](https://github.com/sidorares/node-mysql2/compare/v2.1.0...v3.9.8)

---
updated-dependencies:
- dependency-name: mysql2
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

react-express-mysql/backend/package-lock.json

@@ -144,11 +144,6 @@
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@@ -237,7 +232,8 @@
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       "dev": true
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-    "cardinal": {
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-      "integrity": "sha1-fMEFXYItISlU0HsIXeolHMe8VQU=",
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@@ -729,9 +716,9 @@
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-      "integrity": "sha512-OfzPuSZKGcgr96rf1oODnfjqBFmr1DVoc/TrItj3Ohe0Ah1C5WX5Baquw/9U9KovnQ88EqmJbD66rKYUQYN1tQ=="
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/denque/-/denque-2.1.0.tgz",
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@@ -1256,7 +1238,7 @@
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-      "integrity": "sha1-V/4cTkhHTt1lsJkR8msc1Ald2oQ="
+      "integrity": "sha512-Ks/IoX00TtClbGQr4TWXemAnktAQvYB7HzcCxDGqEZU6oCmb2INHuOoKxbtR+HFkmYWBKv/dOZtGRiAjDhj92g=="
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@@ -1381,9 +1363,9 @@
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-      "integrity": "sha512-XsP+KhQif4bjX1kbuSiySJFNAehNxgLb6hPRGJ9QsUr8ajHkuXGdrHmFUTUUXhDwVX2R5bY4JNZEwbUiMhV+MA=="
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@@ -1392,12 +1374,9 @@
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@@ -1609,52 +1588,42 @@
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     "mysql2": {
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-      "resolved": "https://registry.npmjs.org/mysql2/-/mysql2-2.1.0.tgz",
-      "integrity": "sha512-9kGVyi930rG2KaHrz3sHwtc6K+GY9d8wWk1XRSYxQiunvGcn4DwuZxOwmK11ftuhhwrYDwGx9Ta4VBwznJn36A==",
+      "version": "3.9.8",
+      "resolved": "https://registry.npmjs.org/mysql2/-/mysql2-3.9.8.tgz",
+      "integrity": "sha512-+5JKNjPuks1FNMoy9TYpl77f+5frbTklz7eb3XDwbpsERRLEeXiW2PDEkakYF50UuKU2qwfGnyXpKYvukv8mGA==",
       "requires": {
-        "cardinal": "^2.1.1",
-        "denque": "^1.4.1",
+        "denque": "^2.1.0",
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-        "iconv-lite": "^0.5.0",
-        "long": "^4.0.0",
-        "lru-cache": "^5.1.1",
-        "named-placeholders": "^1.1.2",
+        "iconv-lite": "^0.6.3",
+        "long": "^5.2.1",
+        "lru-cache": "^8.0.0",
+        "named-placeholders": "^1.1.3",
         "seq-queue": "^0.0.5",
-        "sqlstring": "^2.3.1"
+        "sqlstring": "^2.3.2"
       },
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-          "integrity": "sha512-ONHr16SQvKZNSqjQT9gy5z24Jw+uqfO02/ngBSBoqChZ+W8qXX7GPRa1RoUnzGADw8K63R1BXUMzarCVQBpY8Q==",
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           "requires": {
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+            "safer-buffer": ">= 2.1.2 < 3.0.0"
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     "named-placeholders": {
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@@ -1871,11 +1840,6 @@
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@@ -1975,14 +1939,6 @@
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@@ -2093,7 +2049,7 @@
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@@ -2142,9 +2098,9 @@
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-      "integrity": "sha1-R1OT/56RR5rqYtyvDKPRSYOn+0A="
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@@ -2454,7 +2410,8 @@
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react-express-mysql/backend/package.json

@@ -17,7 +17,7 @@
     "express": "^4.17.1",
     "knex": "^0.95.11",
     "morgan": "^1.10.0",
-    "mysql2": "^2.1.0"
+    "mysql2": "^3.9.8"
   },
   "devDependencies": {
     "chai": "^4.2.0",