Upgrade Hugo version to v0.143.1 (#851)

Resolves #850 

## Description of the changes
- added try functionality as new version of hugo

## How was this change tested?
- 

## Checklist
- [x] I have read
https://github.com/jaegertracing/jaeger/blob/master/CONTRIBUTING_GUIDELINES.md
- [x] I have signed all commits
- [ ] I have added unit tests for the new functionality
- [ ] I have run lint and test steps successfully
  - for `jaeger`: `make lint test`
  - for `jaeger-ui`: `npm run lint` and `npm run test`

---------

Signed-off-by: AnmolxSingh <anmol7344@gmail.com>
Signed-off-by: Yuri Shkuro <yurishkuro@users.noreply.github.com>
Co-authored-by: Yuri Shkuro <yurishkuro@users.noreply.github.com>

.github/workflows/ci-test.yml

@@ -17,7 +17,7 @@ jobs:
     - name: ✨ Setup Hugo
       env:
         # should match one from netlify.toml
-        HUGO_VERSION: 0.123.6
+        HUGO_VERSION: 0.143.1
       run: |
         mkdir ~/hugo
         cd ~/hugo

netlify.toml

@@ -3,7 +3,8 @@ publish = "public"
 command = "make netlify-production-build"
 
 [build.environment]
-HUGO_VERSION = "0.123.6"
+# should match one from .github/workflows/ci-test.yml
+HUGO_VERSION = "0.143.1"
 
 [context.deploy-preview]
 command = "make netlify-deploy-preview"

themes/jaeger-docs/layouts/index.html

@@ -1,10 +1,12 @@
 {{ define "main" }}
-{{ $rss := "" }}
-{{ with resources.GetRemote "https://medium.com/feed/jaegertracing" }}
+{{ $rss := dict }}
+{{ with try (resources.GetRemote "https://medium.com/feed/jaegertracing") }}
   {{ with .Err }}
     {{ errorf "%s" . }}
-  {{ else }}
+  {{ else with .Value }}
     {{ $rss = . | transform.Unmarshal }}
+  {{ else }}
+    {{ warnf "Unable to fetch RSS feed" }}
   {{ end }}
 {{ end }}