Improvements in the currency automation script (#743)

* Updated the currency automation script to accommodate capital letters in the package URL.

* Fixed typo in the httprouter url

supported_versions.md

@@ -4,7 +4,7 @@
 | 2 | HTTP | [echo](https://pkg.go.dev/github.com/labstack/echo/v4) | [instaecho](https://pkg.go.dev/github.com/instana/go-sensor/instrumentation/instaecho) | v4.6.0 | v4.12.0 |
 | 3 | HTTP | [gin](https://pkg.go.dev/github.com/gin-gonic/gin) | [instagin](https://pkg.go.dev/github.com/instana/go-sensor/instrumentation/instagin) | v1.7.2 | v1.9.1 |
 | 4 | HTTP | [mux](https://pkg.go.dev/github.com/gorilla/mux) | [instamux](https://pkg.go.dev/github.com/instana/go-sensor/instrumentation/instamux) | v1.8.0 | v1.8.1 |
-| 5 | HTTP | [httprouter](http://pkg.go.dev/github.com/julienschmidt/httprouter) | [instahttprouter](https://pkg.go.dev/github.com/instana/go-sensor/instrumentation/instahttprouter) | v1.3.0 | v1.3.0 |
+| 5 | HTTP | [httprouter](https://pkg.go.dev/github.com/julienschmidt/httprouter) | [instahttprouter](https://pkg.go.dev/github.com/instana/go-sensor/instrumentation/instahttprouter) | v1.3.0 | v1.3.0 |
 | 6 | HTTP | [fiber](https://pkg.go.dev/github.com/gofiber/fiber/v2) | [instafiber](https://pkg.go.dev/github.com/instana/go-sensor/instrumentation/instafiber) | v2.48.0 | v2.52.4 |
 | 7 | RPC | [grpc](https://pkg.go.dev/google.golang.org/grpc) | [instagrpc](https://pkg.go.dev/github.com/instana/go-sensor/instrumentation/instagrpc) | v1.15.0 | v1.63.2 |
 | 8 | Databases | database/sql | | | |

version_updater.sh

@@ -27,9 +27,10 @@ find_latest_version() {
   if [ -n "$pkg" ]; then
       # Query the latest version for the package
       local url="https://proxy.golang.org/${pkg}/@latest"
-      echo $url
-      curl -s "$url"
-      LATEST_VERSION=$(curl -s "$url" | jq .Version | tr -d '"')
+      local url_lower=$(echo "$url" | awk '{ print tolower($0) }')
+      echo $url_lower
+      curl -s "$url_lower"
+      LATEST_VERSION=$(curl -s "$url_lower" | jq .Version | tr -d '"')
   else
       LATEST_VERSION=""
       echo "Invalid package location: $pkg"