test/custom_ssl: Rotate certificate

Updates the certificates used for custom SSL to prevent exceptions with
the expiry.

```
=== RUN   TestAccCloudflareCustomSSL_Basic
=== PAUSE TestAccCloudflareCustomSSL_Basic
=== CONT  TestAccCloudflareCustomSSL_Basic
--- FAIL: TestAccCloudflareCustomSSL_Basic (0.28s)
    testing.go:569: Step 0 error: errors during apply:

        Error: Failed to create custom ssl cert: error from makeRequest: HTTP status 400: content "{\"success\":false,\"errors\":[{\"code\":1206,\"message\":\"The certificate will expire within soon. Please supply a newer one\"}],\"messages\":[],\"result\":null}"

          on /opt/teamcity-agent/temp/buildTmp/tf-test656714404/main.tf line 2:
          (source code not available)

FAIL
```

cloudflare/resource_cloudflare_custom_ssl_test.go

@@ -49,8 +49,8 @@ func testAccCheckCloudflareCustomSSLCertBasic(zoneID string, rName string) strin
 resource "cloudflare_custom_ssl" "%[2]s" {
   zone_id = "%[1]s"
   custom_ssl_options = {
-    certificate = "-----BEGIN CERTIFICATE-----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\nT11Xy/i+xFc5fa+H2Gpycit3fdkj5TEVPX7ye4yHo2wtPg==\n-----END CERTIFICATE-----\n-----BEGIN CERTIFICATE-----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\nKOqkqm57TH2H3eDJAkSnh6/DNFu0Qg==\n-----END CERTIFICATE-----\n"
-    private_key = "-----BEGIN PRIVATE KEY-----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\n3MA/2EkI8J7LVX1KcuTUGTQ=\n-----END PRIVATE KEY-----\n"
+    certificate = "-----BEGIN CERTIFICATE-----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\nRgXCk04gCCZPMLVBldVMVlTkOg==\n-----END CERTIFICATE-----\n"
+    private_key = "-----BEGIN RSA PRIVATE KEY-----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\naC0/ce9OcODi4BFalUuM8MPkl9TdAzlTubHB8DmnQh3GscfJUQahPQ==\n-----END RSA PRIVATE KEY-----\n"
     bundle_method = "ubiquitous",
     geo_restrictions = "us"
     type = "legacy_custom"