fix: package.json & yarn.lock to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-ANSIHTML-1296849
- https://snyk.io/vuln/SNYK-JS-AXIOS-6032459
- https://snyk.io/vuln/SNYK-JS-BABELTRAVERSE-5962462
- https://snyk.io/vuln/SNYK-JS-DECOMPRESSTAR-559095
- https://snyk.io/vuln/SNYK-JS-GOT-2932019
- https://snyk.io/vuln/SNYK-JS-HTTPCACHESEMANTICS-3248783
- https://snyk.io/vuln/SNYK-JS-JSON5-3182856
- https://snyk.io/vuln/SNYK-JS-LODASH-1018905
- https://snyk.io/vuln/SNYK-JS-LODASH-1040724
- https://snyk.io/vuln/SNYK-JS-MINIMATCH-3050818
- https://snyk.io/vuln/SNYK-JS-NODEFETCH-2342118
- https://snyk.io/vuln/SNYK-JS-NODEFORGE-2330875
- https://snyk.io/vuln/SNYK-JS-NODEFORGE-2331908
- https://snyk.io/vuln/SNYK-JS-NODEFORGE-2430337
- https://snyk.io/vuln/SNYK-JS-NODEFORGE-2430339
- https://snyk.io/vuln/SNYK-JS-NODEFORGE-2430341
- https://snyk.io/vuln/SNYK-JS-OBJECTPATH-1569453
- https://snyk.io/vuln/SNYK-JS-OBJECTPATH-1585658
- https://snyk.io/vuln/SNYK-JS-PARSEPATH-2936439
- https://snyk.io/vuln/SNYK-JS-POSTCSS-5926692
- https://snyk.io/vuln/SNYK-JS-REQUEST-3361831
- https://snyk.io/vuln/SNYK-JS-SEMVER-3247795
- https://snyk.io/vuln/SNYK-JS-SEMVERREGEX-1047770
- https://snyk.io/vuln/SNYK-JS-SEMVERREGEX-1584358
- https://snyk.io/vuln/SNYK-JS-SEMVERREGEX-1585624
- https://snyk.io/vuln/SNYK-JS-SEMVERREGEX-2824151
- https://snyk.io/vuln/SNYK-JS-TOUGHCOOKIE-5672873
- https://snyk.io/vuln/SNYK-JS-TRIM-1017038
- https://snyk.io/vuln/SNYK-JS-UNSETVALUE-2400660
- https://snyk.io/vuln/SNYK-JS-WS-1296835
- https://snyk.io/vuln/SNYK-JS-XML2JS-5414874

package.json

@@ -14,21 +14,21 @@
     "@testing-library/react-hooks": "3.4.1",
     "@types/react-slick": "0.23.4",
     "axios": "0.21.1",
-    "gatsby": "3.0.0",
+    "gatsby": "4.22.0",
     "gatsby-image": "2.4.20",
     "gatsby-plugin-alias-imports": "1.0.5",
     "gatsby-plugin-manifest": "2.4.33",
     "gatsby-plugin-offline": "3.2.30",
     "gatsby-plugin-react-helmet": "3.3.12",
-    "gatsby-plugin-sharp": "2.6.38",
+    "gatsby-plugin-sharp": "3.15.0",
     "gatsby-plugin-sitemap": "2.4.14",
     "gatsby-plugin-styled-components": "3.3.12",
     "gatsby-plugin-typescript": "2.4.21",
     "gatsby-remark-autolink-headers": "4.11.0",
     "gatsby-remark-external-links": "0.0.4",
     "gatsby-source-filesystem": "2.3.32",
-    "gatsby-transformer-remark": "2.15.0",
-    "gatsby-transformer-sharp": "2.5.16",
+    "gatsby-transformer-remark": "4.0.0",
+    "gatsby-transformer-sharp": "3.15.0",
     "jest-mock-axios": "4.2.1",
     "normalize.css": "8.0.1",
     "react": "16.9.0",