openssl: fix building with v3 no-deprecated + add CI test

- build quictls with `no-deprecated` in CI to have test coverage for
  this OpenSSL 3 configuration.

- don't call `OpenSSL_add_all_algorithms()`, `OpenSSL_add_all_digests()`.
  The caller code is meant for OpenSSL 3, while these two functions were
  only necessary before OpenSSL 1.1.0. They are missing from OpenSSL 3
  if built with option `no-deprecated`, causing build errors:
  ```
  vtls/openssl.c:4097:3: error: call to undeclared function 'OpenSSL_add_all_algorithms'; ISO C99 and later do not   support implicit function declarations [-Wimplicit-function-declaration]
  vtls/openssl.c:4098:3: error: call to undeclared function 'OpenSSL_add_all_digests'; ISO C99 and later do not   support implicit function declarations [-Wimplicit-function-declaration]
  ```
  Ref: https://ci.appveyor.com/project/curlorg/curl-for-win/builds/48587418?fullLog=true#L7667

  Regression from b6e6d4ff8f #12030
  Bug: https://github.com/curl/curl/issues/12380#issuecomment-1822944669
  Reviewed-by: Alex Bozarth

- vquic/curl_ngtcp2: fix using `SSL_get_peer_certificate` with
  `no-deprecated` quictls 3 builds.
  Do it by moving an existing solution for this from `vtls/openssl.c`
  to `vtls/openssl.h` and adjusting caller code.
  ```
  vquic/curl_ngtcp2.c:1950:19: error: implicit declaration of function 'SSL_get_peer_certificate'; did you mean   'SSL_get1_peer_certificate'? [-Wimplicit-function-declaration]
  ```
  Ref: https://github.com/curl/curl/actions/runs/6960723097/job/18940818625#step:24:1178

- curl_ntlm_core: fix `-Wunused-parameter`, `-Wunused-variable` and
  `-Wunused-function` when trying to build curl with NTLM enabled but
  without the necessary TLS backend (with DES) support.

Closes #12384

.github/workflows/ngtcp2-linux.yml

@@ -66,7 +66,7 @@ jobs:
         - name: quictls
           configure: >-
             PKG_CONFIG_PATH="$HOME/nghttpx/lib/pkgconfig" LDFLAGS="-Wl,-rpath,$HOME/nghttpx/lib"
-            --with-ngtcp2=$HOME/nghttpx --enable-warnings --enable-werror --enable-debug
+            --with-ngtcp2=$HOME/nghttpx --enable-warnings --enable-werror --enable-debug --disable-ntlm
             --with-test-nghttpx="$HOME/nghttpx/bin/nghttpx"
             --with-openssl=$HOME/nghttpx
         - name: gnutls
@@ -95,19 +95,19 @@ jobs:
 
     - name: cache quictls
       uses: actions/cache@v3
-      id: cache-quictls
+      id: cache-quictls-no-deprecated
       env:
-        cache-name: cache-quictls
+        cache-name: cache-quictls-no-deprecated
       with:
         path: /home/runner/quictls
         key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ env.quictls-version }}
 
-    - if: steps.cache-quictls.outputs.cache-hit != 'true'
+    - if: steps.cache-quictls-no-deprecated.outputs.cache-hit != 'true'
       run: |
         cd $HOME
         git clone --quiet --depth=1 -b openssl-${{ env.quictls-version }} https://github.com/quictls/openssl quictls
         cd quictls
-        ./config --prefix=$HOME/nghttpx --libdir=$HOME/nghttpx/lib
+        ./config no-deprecated --prefix=$HOME/nghttpx --libdir=$HOME/nghttpx/lib
         make
       name: 'build quictls'