fix: Add Ruby 3.2 to CI and do small fix (#1434)

* Add Ruby 3.2 to CI.

* rescue compatibility error in addition to argument error

In ruby 3.2, when you try to `strip` a string with an invalid UTF-8 byte
sequence, it appears you get an `Encoding::CompatibilityError`, hence we
can now rescue this.

* update trace exporter

* Raise argument error instead of compatibilty error

* appease the cop

---------

Co-authored-by: Josef Šimánek <[email protected]>

Author: plantfansam

.github/workflows/ci.yml

@@ -30,7 +30,13 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v2
+      - name: "Test Ruby 3.2"
+        uses: ./.github/actions/test_gem
+        with:
+          gem: "${{ matrix.gem }}"
+          ruby: "3.2"
       - name: "Test Ruby 3.1"
+        if: "${{ matrix.os == 'ubuntu-latest' }}"
         uses: ./.github/actions/test_gem
         with:
           gem: "${{ matrix.gem }}"
@@ -88,7 +94,13 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v2
+      - name: "Test Ruby 3.2"
+        uses: ./.github/actions/test_gem
+        with:
+          gem: "${{ matrix.gem }}"
+          ruby: "3.2"
       - name: "Test Ruby 3.1"
+        if: "${{ matrix.os == 'ubuntu-latest' }}"
         uses: ./.github/actions/test_gem
         with:
           gem: "${{ matrix.gem }}"
@@ -158,7 +170,13 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v2
+      - name: "Test Ruby 3.2"
+        uses: ./.github/actions/test_gem
+        with:
+          gem: "${{ matrix.gem }}"
+          ruby: "3.2"
       - name: "Test Ruby 3.1"
+        if: "${{ matrix.os == 'ubuntu-latest' }}"
         uses: ./.github/actions/test_gem
         with:
           gem: "${{ matrix.gem }}"

exporter/otlp-http/lib/opentelemetry/exporter/otlp/http/trace_exporter.rb

@@ -271,6 +271,8 @@ def parse_headers(raw)
               begin
                 k = k.to_s.strip
                 v = v.to_s.strip
+              rescue Encoding::CompatibilityError
+                raise ArgumentError, ERROR_MESSAGE_INVALID_HEADERS
               rescue ArgumentError => e
                 raise e, ERROR_MESSAGE_INVALID_HEADERS
               end

exporter/otlp/lib/opentelemetry/exporter/otlp/exporter.rb

@@ -398,6 +398,8 @@ def parse_headers(raw)
             begin
               k = k.to_s.strip
               v = v.to_s.strip
+            rescue Encoding::CompatibilityError
+              raise ArgumentError, ERROR_MESSAGE_INVALID_HEADERS
             rescue ArgumentError => e
               raise e, ERROR_MESSAGE_INVALID_HEADERS
             end