chore(deps): bump outdated go toolchain for 2.8.x release

[pmalek]

What this PR does / why we need it:

Bumps outdated packages to address security scan:

Before:

$ docker scout cves kong/kubernetes-ingress-controller:2.8.1
Analyzing image kong/kubernetes-ingress-controller:2.8.1
    ✓ Image stored for indexing
    ✓ Indexed 97 packages
    ✗ Detected 2 vulnerable packages with a total of 6 vulnerabilities

  0C    4H    1M    0L  stdlib 1.19.4
pkg:golang/stdlib@1.19.4

    ✗ HIGH CVE-2022-41725 [Uncontrolled Resource Consumption]
      https://dso.docker.com/cve/CVE-2022-41725
      Affected range : <1.19.6
      Fixed version  : 1.19.6
      CVSS Score     : 7.5
      CVSS Vector    : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

    ✗ HIGH CVE-2022-41723 [Uncontrolled Resource Consumption]
      https://dso.docker.com/cve/CVE-2022-41723
      Affected range : <1.19.6
      Fixed version  : 1.19.6
      CVSS Score     : 7.5
      CVSS Vector    : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

    ✗ HIGH CVE-2022-41724 [Uncontrolled Resource Consumption]
      https://dso.docker.com/cve/CVE-2022-41724
      Affected range : <1.19.6
      Fixed version  : 1.19.6
      CVSS Score     : 7.5
      CVSS Vector    : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

    ✗ HIGH CVE-2022-41722 [Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')]
      https://dso.docker.com/cve/CVE-2022-41722
      Affected range : <1.19.6
      Fixed version  : 1.19.6
      CVSS Score     : 7.5
      CVSS Vector    : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

    ✗ MEDIUM CVE-2023-24532 [Incorrect Calculation]
      https://dso.docker.com/cve/CVE-2023-24532
      Affected range : <1.19.7
      Fixed version  : 1.19.7
      CVSS Score     : 5.3
      CVSS Vector    : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N


  0C    1H    0M    0L  net 0.4.0
pkg:golang/golang.org/x/net@0.4.0

    ✗ HIGH CVE-2022-41723 [Uncontrolled Resource Consumption]
      https://dso.docker.com/cve/CVE-2022-41723
      Affected range : <0.7.0
      Fixed version  : 0.7.0
      CVSS Score     : 7.5
      CVSS Vector    : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

     GMS-2023-418
      https://dso.docker.com/cve/GMS-2023-418
      Affected range : <0.7.0
      Fixed version  : 0.7.0



The image contains 2 packages with one or more vulnerability for a total of 6 vulnerabilities
  LOW      | 0
  MEDIUM   | 1
  HIGH     | 5
  CRITICAL | 0

After:

Analyzing image kong/kubernetes-ingress-controller:v2.8.1
    ✓ SBOM of image already cached, 97 packages indexed
    ✓ No vulnerable package detected

Which issue this PR fixes:

Related #3756